
John Bohlinger plays “Grandpa,” Kurt Cobain’s 1953 D-18 that resides in the Martin Guitar 1833 Shop and Museum.
Energy is in everything. Something came over me while playing historical instruments in the Martin Guitar Museum.
When I’m filming gear demo videos, I rarely know what I’m going to play. I just pick up whatever instrument I’m handed and try to feel where it wants to go. Sometimes I get no direction, but sometimes, gear is truly inspiring—like music or emotion falls right out. I find this true particularly with old guitars. You might feel some vibe attached to the instrument that affects what and how you play. I realize this sounds like a hippie/pseudo-spiritual platitude, but we’re living in amazing times. The Nobel Prize was just awarded to a trio of quantum physicists for their experiments with quantum entanglement, what Albert Einstein called “spooky action at a distance.” Mainstream science now sounds like magic, so let’s suspend our disbelief for a minute and consider that there’s more to our world than what’s on the surface.
I recently spent a day filming a factory tour of Martin Guitars in Nazareth, Pennsylvania. After we wrapped, we discovered that Martin has this amazing museum that showcases more than 170 historic instruments. We decided to meet at the museum at 7:45 a.m. the next morning to film a few choice pieces before catching our flight in not-too-near Newark, New Jersey, that afternoon.
These were not ideal conditions for a performance. Neither my brain nor my fingers work well before 10 a.m., plus I hadn’t slept well the night before. Even so, we loaded into the museum, met the curators, set up the shoot, and began rolling by 8 a.m.
The first guitar was an 1834 gut string, perhaps the oldest Martin in existence. It was beautiful but had some tuning issues and did not project very well, so playing it felt more like work than music.
Next was a prewar D-45 worth over $500k. The strings were ancient with that rusty feel, like you’ll need a tetanus shot after playing it. I’m sure it sounded great, but I was tired and thinking more about making our flight than playing guitar. Wonderful instrument but uninspired performance on my end.
Then, I played a 1953 D-18 coined “Grandpa” by Kurt Cobain. I picked up the deeply sacred D-18, and my hands went to an A minor. This sounds like hype, but honestly, I closed my eyes and connected with a deep, beautiful sadness. The feeling was palpable as soon as you picked it up. This guitar pretty much played itself, leading me to a sad version of “While My Guitar Gently Weeps.” I don’t know if it was any good, but I know I felt something deeply. That’s why I started playing guitar in the first place. I don’t have to play well to feel moved.
I later talked to the museum director, who told me the D-18 was given to Cobain by his 1991 girlfriend Mary Lou Lord. Cobain played it on tour before and after Nirvana’s Nevermind. It was returned to her after Cobain married. Shortly after that, Mary Lou loaned the guitar to Elliott Smith, who played it until his death.
When I’m sad, I make myself play guitar to feel better, because it usually works. This 70-year-old guitar spent a lot of time literally pressed up against the hearts and chests of two artists who were so tormented by their emotions that they ended their lives. That’s heavy. You can’t explain those feelings that make the hair stand up on your arm, or when you feel like crying for no reason … but hitting that A minor made me feel it.
We had to split for the airport, so Chris Kies and Perry Bean started packing up. As they did, I saw this cute little 1880 Martin 000 that belonged to Joan Baez. In the photo next to it, Joan looks like my mom in the ’60s. I asked the curator if I could play it, and Chris grabbed his phone to do a quick Insta video. I swear there was a happy vibe coming off this tiny guitar. It felt like watching my mom dance—like a warm hug I needed after Cobain’s D-18.
In Chinese culture, there is a superstition that antiques may hold evil spirits, and chi (energy) transfer can bring this negativity into your home. Feng shui is all about objects carrying good or bad chi. Here’s how I see it: All matter is made of atoms. Atoms contain energy. Ergo, everything contains energy, or, more aptly, everything is energy. Ever walk into a room and feel powerful emotion: joy, sadness, fear, tranquility? That’s energy. We all have felt energy coming from people, places, and things. But that’s what I love about old guitars: Their atoms spent the first few hundred years as a tree in the forest connected to nature. Then, they’re turned into an instrument that makes people happy or consoles them when they are sad. That’s the kind of chi I want around me.
The Saddest Martin Ever? A 1953 D-18 Owned by Kurt Cobain & Elliott Smith
Watch John Bohlinger summon the ghosts of two songwriting powerhouses as we learn about a special piece of acoustic history.
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It’s almost over, but there’s still time to win! Enter Stompboxtober Day 30 for your shot at today’s pedal from SoloDallas!
The Schaffer Replica: Storm
The Schaffer Replica Storm is an all-analog combination of Optical Limiter+Harmonic Clipping Circuit+EQ Expansion+Boost+Line Buffer derived from a 70s wireless unit AC/DC and others used as an effect. Over 50 pros use this unique device to achieve percussive attack, copious harmonics and singing sustain.
A 1000-watt speaker cabinet crafted for musicians who demand power and precision. Sunn Amps intends to reinvent the standard 4x12 configuration with the introduction of this new cabinet.
The Sunn Amps DoomBox is built to accommodate both guitar and bass, offering an impressive 1000-watt handling capacity—making it the first commercially available 4x12 cabinet with such high power handling. With four specially designed 12” drivers rated at 250 watts each, this cabinet provides clean, unrestrained sound levels that can maintain power integrity across all frequencies, ideal for high-volume performances.
Inspired and developed using feedback from artists and bands who rely on the depth of lower tunings and high volume genres, the DoomBox was engineered to meet the unique demands of professional musicians looking for a robust, high-efficiency cab that can translate the raw power of their sound without compromise.
Premium Craftsmanship and Materials
The Doom Box cabinet is crafted from solid finger-jointed Baltic Birch plywood, ensuring both durability and tonal clarity. Each cabinet is constructed by hand in the U.S.A. using original 1930s machinery, the DoomBox reflects Sunn’s historic commitment to quality, contrasting with some of the mass-produced, MDF-based cabinets on the market today. The cabinet’s aluminum basket, ferrite magnet, and custom Sunn weave Tolex with a custom grill design complete its professional-grade build.
Technical Specifications:
• Power Handling: 1000W
• Inputs: 1 x ¼”
• Impedance: 8 Ohm
• Drivers: 4 x Sunn 12S250
• Construction: Marine Grade Baltic Birch
• Dimensions: 29.25” X 30” X 14”
• Weight: 107 lbs
• Price: $2399.00
With clear low-end punch, even sound response, and ample air movement, the Doom Box ensures that every note reaches the audience with clarity and power. This cabinet is a game-changer for musicians who need high-performance, road-ready equipment that enhances their unique sound.
Does the guitar’s design encourage sonic exploration more than sight reading?
A popular song between 1910 and 1920 would usually sell millions of copies of sheet music annually. The world population was roughly 25 percent of what it is today, so imagine those sales would be four or five times larger in an alternate-reality 2024. My father is 88, but even with his generation, friends and family would routinely gather around a piano and play and sing their way through a stack of songbooks. (This still happens at my dad’s house every time I’m there.)
Back in their day, recordings of music were a way to promote sheet music. Labels released recordings only after sheet-music sales slowed down on a particular song. That means that until recently, a large section of society not only knew how to read music well, but they did it often—not as often as we stare at our phones, but it was a primary part of home entertainment. By today’s standards, written music feels like a dead language. Music is probably the most common language on Earth, yet I bet it has the highest illiteracy rate.
Developed specifically for Tyler Bryant, the Black Magick Reverb TB is the high-power version of Supro's flagship 1x12 combo amplifier.
At the heart of this all-tube amp is a matched pair of military-grade Sovtek 5881 power tubes configured to deliver 35-Watts of pure Class A power. In addition to the upgraded power section, the Black Magick Reverb TB also features a “bright cap” modification on Channel 1, providing extra sparkle and added versatility when blended with the original Black Magick preamp on Channel 2.
The two complementary channels are summed in parallel and fed into a 2-band EQ followed by tube-driven spring reverb and tremolo effects plus a master volume to tame the output as needed. This unique, signature variant of the Black Magick Reverb is dressed in elegant Black Scandia tolex and comes loaded with a custom-built Supro BD12 speaker made by Celestion.
Price: $1,699.