
Although he's become a leading figure in both jazz and blues guitar, Robben Ford's first instrument was saxophone. He switched to guitar at 14 and was fronting the Charles Ford Blues Band—named after his father—and supporting blues greats Charlie Musselwhite and Jimmy Witherspoon by age 18.
The jazz and blues virtuoso changed his tone palette on the new all-instrumental album, Pure, stepping way from his legendary 100-watt Dumble. After 36 years playing the same rig, the transition was not easy.
"I consider it a real blessing having learned the guitar through the blues medium," says Robben Ford. "I then developed a great love for jazz and, in particular, the tenor saxophone. Those guys—or the guys that I like, I should say—are all very vocal players. They're singers. Miles Davis's trumpet as well is the most brilliant example of a trumpet player using his horn as a voice. It's very much related to speech. Sometimes you speak softly. Sometimes you just groove along. Sometimes you yell. You're always trying to say something as opposed to play something."
Robben Ford's musical conversations date back to the early 1970s and include work with artists as disparate as Joni Mitchell, George Harrison, Miles Davis, the Yellowjackets, and Charlie Musselwhite. He's also released more than 30 albums as a leader, with most featuring his songwriting and vocals. However, like many things these days, change is in the air, and his recently released Pure is an all-instrumental album. It's the first time he's done that since Tiger Walk in 1997.
Pure
Ford's playing is a unique hybrid style that incorporates the nuance and sensibilities of the blues with the harmonic complexity of jazz. It's an approach that sounds intuitive and obvious in his hands, and on Pure, he takes advantage of the instrumental setting to showcase those different sides of his musical personality.
Pure's roots date back to 2017, when Ford relocated to Nashville. After years on the road, he was looking for a community with a vibrant music scene. He wanted a place where he could gig regularly with local players, focus on producing albums for other artists, and—for someone who's basically been a road warrior since the early 1970s—somewhat settle down.
"I've always been trying to find it on the guitar as opposed to with an effect."
By early 2020, Ford had racked up a number of production credits and was knee-deep in instrumental projects with people like saxophonist Bill Evans, pedal-steel guitarist Paul Franklin, and guitarist John Jorgenson. But then the world came to a screeching halt, and all that work was put on hold.
Except his psyche was still in a very instrumental zone, because that's what he was busy with when the work dried up. "Ever since Tiger Walk, I've basically devoted myself to really learning how to write a good song and to deliver it on the bandstand as a vocalist," Ford says. "But my head was in the instrumental thing, and I thought, 'Let's just run with it. I am feeling it.' And indeed, that's why I did the instrumental record."
Robben Ford's Gear
Since 1983, Ford had used the same amp on all his albums—the second Overdrive Special built by Howard Dumble, with a 2x12 Dumble cab—until 2018. "It's been a revelation for me to get into the smaller amp thing when recording," he says.
Photo by Joseph A. Rosen
Guitars
- 1960 Fender Telecaster
- 1952 Fender Telecaster
- 1966 Epiphone Riviera
- 1964 Gibson ES-355
- 1964 Gibson SG
- Assorted Paul Reed Smith guitars
Strings & Picks
- D'Addario (.010–.046)
- D'Addario heavy picks
Amps
- Dumble Overdrive Special (100 watt)
- Dumble 2x12 Cabinet
- Little Walter "59" (50 watt)
- Little Walter King Arthur (15 watt)
Effects
- Hermida Audio Zendrive
- Cornerstone Music Gear Gladio preamp
- Strymon TimeLine Delay
- Electro-Harmonix Micro POG
It's a setting that plays to Ford's strengths—the most prominent being his use of dynamics. He doesn't dime his amp and scream at you song after song. He tells a story, mimicking the natural inflections of speech. It's a skill he's mastered and, according to him, is the result of growing up immersed in the blues, followed by developing a passion for horn-centric jazz.
Rig Rundown - Robben Ford
Watch Robben Ford and Nashville luthier Joe Glaser go over his live setup.
Another way Ford changes things up is in the subtle use of his pick. He regularly plays by holding the pick backward and using the rounded end, but switches to the pointy end when aiming softer and lighter. He'll also vary the timbre by intuitively moving his picking hand between the neck end and the bridge, which is more percussive and punchy.
TIBIT: The new album was recorded at Purple House, an intimate studio outside of Nashville owned by Ford's co-producer, engineer, and second guitarist, Casey Wasner.
"I've always been trying to find it on the guitar as opposed to with an effect," he says about searching for the right tone. "That's another deliberate choice. Rather than going to a pedal, I'll try to get nuance using the pick and volume. It's just the way I learned how to play. The blues players and tenor players, man, those guys weren't using effects." But he's not an anti-pedal purist (despite the album's title), and pedals have factored into his tone for decades. "We have so many colors on the new album that I am trying to find them and recreate a little of what happened on the album through effects. This is a new phase for me. I'm using two different overdrives instead of just the one, because I need that other color. I am also working a lot with the Strymon TimeLine Delay. I've been using that for a while, but really just for short and long delays, nothing special."
Ford's main overdrive, for decades, is the Hermida Audio Zendrive. He's been through a number of units, but it's been a staple. He's also added a second overdrive to his pedalboard: the Gladio preamp from the Italian manufacturer Cornerstone Music Gear.
Robben Ford Show 6º Festival de Blues e Jazz
Here's Robben Ford defining great tone in a 2021 livestream show from Nashville, with his 1961 Gibson SG.
"It's basically an overdrive pedal," he says. "The fellow basically designed it trying to capture what he heard me doing with the Zendrive. He sent pedals to my friend Jeff McErlain. Jeff is a guitar player from Brooklyn. I produced his album, and he's been very helpful to me in terms of gear. He's turned me on to things that I was unaware of, and the Gladio was one of them."
Another essential element of Ford's tone has been his Dumble Overdrive Special, which he's been using since 1983. Since all Dumbles are built for specific players, Ford's was made by Howard Dumble with his particular tonal needs in mind. That amp—the second Overdrive Special built—still comes out occasionally when he plays live, but in the studio, since moving to Nashville, his needs have evolved.
Ford's latest album features several guests, but his core band is Casey Wasner on guitar, Michael Rhodes on bass, and drummer Shannon Forrest.
Photo by Mascha Thompson
Ford was recording 2018's Purple House at a studio in Leipers Fork, Tennessee, called—you guessed it—the Purple House, when he realized that the Dumble wasn't going to work. "The Purple House is a studio owned by my co-producer and engineer, Casey Wasner. It's a small house and the rooms are small—the rooms aren't live—and I tried using the Dumble and it was just too big. Everything was being recorded in one room. It was a small, dead room, and the drums, bass, and myself—with my amp and a cabinet—were in that one room. The bass was direct, and Casey was in the control room playing rhythm guitar, along with a second engineer. No matter how hard we tried, the Dumble just didn't fit. I always work in a much more spacious environment. I like larger rooms. When we did that record, it was an experiment. I learned a lot about recording—how to record and how to use the studio—and, in particular, I got comfortable with small amplifiers."
"I don't want to change the way I play. It took a long time to get here."
For Ford, getting comfortable with small amplifiers meant finding a way to adapt to the new situation without changing the way he plays. "That was the journey," he says. "How do we keep the vibe? I don't want to change the way I play. It took a long time to get here. I had to find a way. It was hard for me, and it was a struggle. It took about four months during the making of Purple House to feel like, 'Okay, now I get it.' There were times when we went into a really righteous overdub room where I could crank the amp up. It's a real process and, for me, not one that I ever paid that much attention to. Up until Purple House I had always worked in larger rooms, with the same amp and cabinet, and some great engineer. I've been doing this for 30 years. It was a big change but cool. I am really happy having had the experience and having learned these things."
Back in 1974, George Harrison hired wunderkind 23-year-old guitarist Robben Ford for the George Harrison and Friends North American Tour.
Photo by Jim Summaria/Frank White Photo Agency
Ford took those lessons to heart, and he's continued in that vein on Pure. In the studio, his primary amp was the Little Walter "59," which is a 50-watt head, through a single 12" cabinet, which, despite what he's learned, is still taking some getting used to. "I've literally done every record I've ever made since Talk to Your Daughter (1988) with the same Dumble Overdrive Special and cabinet. [That's a 2x12, also built by Dumble.] It's been a revelation for me to get into the smaller amp thing when recording."
But despite his intensive efforts discovering the right tone—not to mention his years studying the instrument and developing his craft—ultimately, playing, for Ford, is intuitive.
"An analogy that I came up with for the way I play is that it's like finger painting," he says. "You put the color on the paper and then you brush it around. You're not making a square, necessarily, you're free flowing. It's more like clouds and wind. There is freedom in it, and it is never going to be the same way twice—it actually can't be the same way twice—because it's like brush strokes. I made a very conscious effort to take chances in the improvisations. It's always been very key to me, and, once again, it's a product of the people I listened to."
How to Play “That Out Shit”
(For more insight, watch Robben Ford explain—and play—diminished scale blues in this video.)
A big part of Robben Ford's playing is his use of the half/whole diminished scale, which is an eight-note scale that alternates half-steps and whole-steps over the course of an octave. It's a scale that's been in the jazz repertoire for decades and was a huge part of the Miles Davis sound throughout the 1980s. Ford was a member of Davis' band in 1986, although he began using that scale much earlier.
"A long time ago, I was 19, and my brother Patrick, a drummer, and I were playing with Charlie Musselwhite," Ford says. "We were on the bill with Larry Coryell at a club long gone in L.A. called the Ash Grove. At one point, I just asked him, 'How do you play all that out shit?' He said, 'I use the half-step whole-step scale.' And I was like, 'Okay.' I went back to my hotel room and went G, G#, A#, B, and I worked out the scale. That was in 1971."
"We were on the bill with Larry Coryell at a club long gone in L.A. called the Ash Grove. At one point, I just asked him, 'How do you play all that out shit?'"
One aspect of that scale's sound is the b9, which is a note Miles Davis often sat on. "Miles Davis would just play a b9 right on top of a seventh chord as his first note. I heard that sound, and from that time on I experimented with the half/whole diminished scale. Once I understood it through learning chords and realized it was a diminished scale and you could play it right off a #9 chord, that was the sound that I heard. I just got deep into it, and it has been a major quality in my playing."
Ford points out that all of the notes in a dominant 7th chord fit into the scale and says, "So there's my chord and I can play any of these notes. I can play a b9 against a G7—whether anybody likes it or not—and it's legit. I really work with that, and for me, that was the gift of Miles Davis."
This legendary vintage rack unit will inspire you to think about effects with a new perspective.
When guitarists think of effects, we usually jump straight to stompboxes—they’re part of the culture! And besides, footswitches have real benefits when your hands are otherwise occupied. But real-time toggling isn’t always important. In the recording studio, where we’re often crafting sounds for each section of a song individually, there’s little reason to avoid rack gear and its possibilities. Enter the iconic Eventide H3000 (and its massive creative potential).
When it debuted in 1987, the H3000 was marketed as an “intelligent pitch-changer” that could generate stereo harmonies in a user-specified key. This was heady stuff in the ’80s! But while diatonic harmonizing grabbed the headlines, subtler uses of this pitch-shifter cemented its legacy. Patch 231 MICROPITCHSHIFT, for example, is a big reason the H3000 persists in racks everywhere. It’s essentially a pair of very short, single-repeat delays: The left side is pitched slightly up while the right side is pitched slightly down (default is ±9 cents). The resulting tripling/thickening effect has long been a mix-engineer staple for pop vocals, and it’s also my first call when I want a stereo chorus for guitar.
The second-gen H3000S, introduced the following year, cemented the device’s guitar bona fides. Early-adopter Steve Vai was such a proponent of the first edition that Eventide asked him to contribute 48 signature sounds for the new model (patches 700-747). Still-later revisions like the H3000B and H3000D/SE added even more functionality, but these days it’s not too important which model you have. Comprehensive EPROM chips containing every patch from all generations of H3000 (plus the later H3500) are readily available for a modest cost, and are a fairly straightforward install.
In addition to pitch-shifting, there are excellent modulation effects and reverbs (like patch 211 CANYON), plus presets inspired by other classic Eventide boxes, like the patch 513 INSTANT PHASER. A comprehensive accounting of the H3000’s capabilities would be tedious, but suffice to say that even the stock presets get deliciously far afield. There are pitch-shifting reverbs that sound like fever-dream ancestors of Strymon’s “shimmer” effect. There are backwards-guitar simulators, multiple extraterrestrial voices, peculiar foreshadows of the EarthQuaker Devices Arpanoid and Rainbow Machine (check out patch 208 BIZARRMONIZER), and even button-triggered Foley effects that require no input signal (including a siren, helicopter, tank, submarine, ocean waves, thunder, and wind). If you’re ever without your deck of Oblique Strategies cards, the H3000’s singular knob makes a pretty good substitute. (Spin the big wheel and find out what you’ve won!)
“If you’re ever without your deck of Oblique Strategies cards, the H3000’s singular knob makes a pretty good substitute.”
But there’s another, more pedestrian reason I tend to reach for the H3000 and its rackmount relatives in the studio: I like to do certain types of processing after the mic. It’s easy to overlook, but guitar speakers are signal processors in their own right. They roll off high and low end, they distort when pushed, and the cabinets in which they’re mounted introduce resonances. While this type of de facto processing often flatters the guitar itself, it isn’t always advantageous for effects.
Effects loops allow time-based effects to be placed after preamp distortion, but I like to go one further. By miking the amp first and then sending signal to effects in parallel, I can get full bandwidth from the airy reverbs and radical pitched-up effects the H3000 can offer—and I can get it in stereo, printed to its own track, allowing the wet/dry balance to be revisited later, if needed. If a sound needs to be reproduced live, that’s a problem for later. (Something evocative enough can usually be extracted from a pedal-form descendant like the Eventide H90.)
Like most vintage gear, the H3000 has some endearing quirks. Even as it knowingly preserves glitches from earlier Eventide harmonizers (patch 217 DUAL H910s), it betrays its age with a few idiosyncrasies of its own. Extreme pitch-shifting exhibits a lot of aliasing (think: bit-crusher sounds), and the analog Murata filter modules impart a hint of warmth that many plug-in versions don’t quite capture. (They also have a habit of leaking black goo all over the motherboard!) It’s all part of the charm of the unit, beloved by its adherents. (Well, maybe not the leaking goo!)
In 2025, many guitarists won’t be eager to care for what is essentially an expensive, cranky, decades-old computer. Even the excitement of occasional tantalum capacitor explosions is unlikely to win them over! Fortunately, some great software emulations exist—Eventide’s own plugin even models the behavior of the Murata filters. But hardware offers the full hands-on experience, so next time you spot an old H3000 in a rack somewhere—and you’ve got the time—fire it up, wait for the distinctive “click” of its relays, spin the knob, and start digging.
The luthier’s stash.
There is more to a guitar than just the details.
A guitar is not simply a collection of wood, wire, and metal—it is an act of faith. Faith that a slab of lumber can be coaxed to sing, and that magnets and copper wire can capture something as expansive as human emotion. While it’s comforting to think that tone can be calculated like a tax return, the truth is far messier. A guitar is a living argument between its components—an uneasy alliance of materials and craftsmanship. When it works, it’s glorious.
The Uncooperative Nature of Wood
For me it all starts with the wood. Not just the species, but the piece. Despite what spec sheets and tonewood debates would have you believe, no two boards are the same. One piece of ash might have a bright, airy ring, while another from the same tree might sound like it spent a hard winter in a muddy ditch.
Builders know this, which is why you’ll occasionally catch one tapping on a rough blank, head cocked like a bird listening. They’re not crazy. They’re hunting for a lively, responsive quality that makes the wood feel awake in your hands. But wood is less than half the battle. So many guitarists make the mistake of buying the lumber instead of the luthier.
Pickups: Magnetic Hopes and Dreams
The engine of the guitar, pickups are the part that allegedly defines the electric guitar’s voice. Sure, swapping pickups will alter the tonality, to use a color metaphor, but they can only translate what’s already there, and there’s little percentage in trying to wake the dead. Yet, pickups do matter. A PAF-style might offer more harmonic complexity, or an overwound single-coil may bring some extra snarl, but here’s the thing: Two pickups made to the same specs can still sound different. The wire tension, the winding pattern, or even the temperature on the assembly line that day all add tiny variables that the spec sheet doesn’t mention. Don’t even get me started about the unrepeatability of “hand-scatter winding,” unless you’re a compulsive gambler.
“One piece of ash might have a bright, airy ring, while another from the same tree might sound like it spent a hard winter in a muddy ditch.”
Wires, Caps, and Wishful Thinking
Inside the control cavity, the pots and capacitors await, quietly shaping your tone whether you notice them or not. A potentiometer swap can make your volume taper feel like an on/off switch or smooth as an aged Tennessee whiskey. A capacitor change can make or break the tone control’s usefulness. It’s subtle, but noticeable. The kind of detail that sends people down the rabbit hole of swapping $3 capacitors for $50 “vintage-spec” caps, just to see if they can “feel” the mojo of the 1950s.
Hardware: The Unsung Saboteur
Bridges, nuts, tuners, and tailpieces are occasionally credited for their sonic contributions, but they’re quietly running the show. A steel block reflects and resonates differently than a die-cast zinc or aluminum bridge. Sloppy threads on bridge studs can weigh in, just as plate-style bridges can couple firmly to the body. Tuning machines can influence not just tuning stability, but their weight can alter the way the headstock itself vibrates.
It’s All Connected
Then there’s the neck joint—the place where sustain goes to die. A tight neck pocket allows the energy to transfer efficiently. A sloppy fit? Some credit it for creating the infamous cluck and twang of Fender guitars, so pick your poison. One of the most important specs is scale length. A longer scale not only creates more string tension, it also requires the frets to be further apart. This changes the feel and the sound. A shorter scale seems to diminish bright overtones, accentuating the lows and mids. Scale length has a definite effect on where the neck joins the body and the position of the bridge, where compromises must be made in a guitar’s overall design. There are so many choices, and just as many opportunities to miss the mark. It’s like driving without a map unless you’ve been there before.
Alchemy, Not Arithmetic
At the end of the day, a guitar’s greatness doesn’t come from its spec sheet. It’s not about the wood species or the coil-wire gauge. It’s about how it all conspires to either soar or sink. Two guitars, built to identical specs, can feel like long-lost soulmates or total strangers. All of these factors are why mix-and-match mods are a long game that can eventually pay off. But that’s the mystery of it. You can’t build magic from a parts list. You can’t buy mojo by the pound. A guitar is more than the sum of its parts—it’s a sometimes unpredictable collaboration of materials, choices, and human touch. And sometimes, whether in the hands of an experienced builder or a dedicated tinkerer, it just works.
Two Iconic Titans of Rock & Metal Join Forces for a Can’t-Miss North American Trek
Tickets Available Starting Wednesday, April 16 with Artist Presales
General On Sale Begins Friday, April 18 at 10AM Local on LiveNation.com
This fall, shock rock legend Alice Cooper and heavy metal trailblazers Judas Priest will share the stage for an epic co-headlining tour across North America. Produced by Live Nation, the 22-city run kicks off September 16 at Mississippi Coast Coliseum in Biloxi, MS, and stops in Toronto, Phoenix, Los Angeles, and more before wrapping October 26 at The Cynthia Woods Mitchell Pavilion in The Woodlands, TX.
Coming off the second leg of their Invincible Shield Tour and the release of their celebrated 19th studio album, Judas Priest remains a dominant force in metal. Meanwhile, Alice Cooper, the godfather of theatrical rock, wraps up his "Too Close For Comfort" tour this summer, promoting his most recent "Road" album, and will have an as-yet-unnamed all-new show for this tour. Corrosion of Conformity will join as support on select dates.
Tickets will be available starting Wednesday, April 16 at 10AM local time with Artist Presales. Additional presales will run throughout the week ahead of the general onsale beginning Friday, April 18 at 10AM local time at LiveNation.comTOUR DATES:
Tue Sep 16 – Biloxi, MS – Mississippi Coast Coliseum
Thu Sep 18 – Alpharetta, GA – Ameris Bank Amphitheatre*
Sat Sep 20 – Charlotte, NC – PNC Music Pavilion
Sun Sep 21 – Franklin, TN – FirstBank Amphitheater
Wed Sep 24 – Virginia Beach, VA – Veterans United Home Loans Amphitheater
Fri Sep 26 – Holmdel, NJ – PNC Bank Arts Center
Sat Sep 27 – Saratoga Springs, NY – Broadview Stage at SPAC
Mon Sep 29 – Toronto, ON – Budweiser Stage
Wed Oct 01 – Burgettstown, PA – The Pavilion at Star Lake
Thu Oct 02 – Clarkston, MI – Pine Knob Music Theatre
Sat Oct 04 – Cincinnati, OH – Riverbend Music Center
Sun Oct 05 – Tinley Park, IL – Credit Union 1 Amphitheatre
Fri Oct 10 – Colorado Springs, CO – Broadmoor World Arena
Sun Oct 12 – Salt Lake City, UT – Utah First Credit Union Amphitheatre
Tue Oct 14 – Mountain View, CA – Shoreline Amphitheatre
Wed Oct 15 – Wheatland, CA – Toyota Amphitheatre
Sat Oct 18 – Chula Vista, CA – North Island Credit Union Amphitheatre
Sun Oct 19 – Los Angeles, CA – Kia Forum
Wed Oct 22 – Phoenix, AZ – Talking Stick Resort Amphitheatre
Thu Oct 23 – Albuquerque, NM – Isleta Amphitheater
Sat Oct 25 – Austin, TX – Germania Insurance Amphitheater
Sun Oct 26 – Houston, TX – The Cynthia Woods Mitchell Pavilion
*Without support from Corrosion of Conformity
MT 15 and Archon 50 Classic amplifiers offer fresh tones in release alongside a doubled-in-size Archon cabinet
PRS Guitars today released the updated MT 15 and the new Archon Classic amplifiers, along with a larger Archon speaker cabinet. The 15-watt, two-channel Mark Tremonti signature amp MT 15 now features a lead channel overdrive control. An addition to the Archon series, not a replacement, the 50-watt Classic offers a fresh voice by producing retro rock “classic” tones reminiscent of sound permeating the radio four and five decades ago. Now twice the size of the first Archon cabinet, the Archon 4x12 boasts four Celestion V-Type speakers.
MT 15 Amplifier Head
Balancing aggression and articulation, this 15-watt amp supplies both heavy rhythms and clear lead tones. The MT 15 revision builds off the design of the MT 100, bringing the voice of the 100’s overdrive channel into its smaller-format sibling. Updating the model, the lead channel also features a push/pull overdrive control that removes two gain stages to produce vintage, crunchier “mid gain” tones. The clean channel still features a push/pull boost control that adds a touch of overdrive crunch. A half-power switch takes the MT to 7 watts.
“Seven years ago, we released my signature MT 15 amplifier, a compact powerhouse that quickly became a go-to for players seeking both pristine cleans and crushing high-gain tones. In 2023, we took things even further with the MT 100, delivering a full-scale amplifier that carried my signature sound to the next level. That inspired us to find a way to fit the 100's third channel into the 15's lunchbox size,” said Mark Tremonti.
“Today, I’m beyond excited to introduce the next evolution of the MT15, now featuring a push/pull overdrive control on the Lead channel and a half-power switch, giving players even more tonal flexibility to shape their sound with a compact amp. Can’t wait for you all to plug in and experience it!”
Archon Classic Amplifier Head
With a refined gain structure from the original Archon, the Archon Classic’s lead channel offers a wider range of tones colored with gain, especially in the midrange. The clean channel goes from pristine all the way to the edge of breakup. This additional Archon version was developed to be a go-to tool for playing classic rock or pushing the envelope into modern territory. The Archon Classic still features the original’s bright switch, presence and depth controls. PRS continues to stock the Archon in retailers worldwide.
“The Archon Classic is not a re-issue of the original Archon, but a newly voiced circuit with the lead channel excelling in '70s and '80s rock tones and a hotter clean channel able to go into breakup. This is the answer for those wanting an Archon with a hotrod vintage lead channel gain structure without changing preamp tube types, and a juiced- up clean channel without having to use a boost pedal, all wrapped up in a retro-inspired cabinet design,” said PRS Amp Designer Doug Sewell.
Archon 4x12 Cabinet
As in the Archon 1x12 and 2x12, the mega-sized PRS Archon 4x12 speaker cabinet features Celestion V-Type speakers and a closed-back design, delivering power, punch, and tight low end. Also like its smaller brethren, the 4x12 is wrapped in durable black vinyl and adorned with a British-style black knitted-weave grill cloth. The Archon 4x12 is only the second four-speaker cabinet in the PRS lineup, next to the HDRX 4x12.
PRS Guitars continues its schedule of launching new products each month in 2025. Stay tuned to see new gear and 40 th Anniversary limited-edition guitars throughout the year. For all of the latest news, click www.prsguitars.com/40 and follow @prsguitars on Instagram, Tik Tok, Facebook, X, and YouTube.