Bespoke Microtonal Guitars & Necks

Available Build Slots

Custom S or T Style Microtonal Neck

June 2025 Build Slot

$700

Custom Scratch Build Down Payment

June-July 2025 Slot

$1500

Custom S or T Style Microtonal Baritone Neck

June 2025 Build Slot

$995

Testimonials

  • I purchased a custom short-scale 22-tone guitar from John a while ago and absolutely love it. Great fretwork, great playability, no problems at all. John is a great luthier for these exotic far-out experimental tunings - would absolutely recommend!

    Mike Battaglia

  • The following is a testimonial on John C. L. Jansen's craftsmanship in lutherie. First, a little bit about me: I've been playing guitar for nearly 30 years and microtonal guitar for about 13. It's more than just a hobby for me, it's a part of my life. Music is a universal language as I see it, everything is composed of energy, frequency and vibration. Creation is music and music is creation. I've always been one to question everything and the standardization of 12 tone equal temperament is no exception. Among the infinite amount of tuning systems available, I resonated with 26 equal. I've had this guitar for over a decade now and John did an exceptional job getting it to play flawlessly with low action all the way to the 52nd fret. No dead frets or sharp ends and the intonation is spot on. His attention to detail is second to none, he even installed some glow in the dark inlays. I've been playing the guitar daily and it's hard to put it down. John is an all around professional who is very accommodating to work with and very reasonable on pricing. I already have future projects for him planned. Highly recommended! Thanks John!

    Zach Curley

  • I am so happy with the Kite-fretting mod that John did for me! The new fretboard is beautiful, and plays like a charm. John is super helpful, communicative, and enthusiastic! He worked with me to find the best way to create the guitar that I wanted, and added to it with aesthetic suggestions (a gold 'a-fret') and extra care in construction. I absolutely recommend working with him, he will not disappoint.

    John Dylan Reed

About Me

I have been making custom handmade bespoke musical instruments for clients around the world since 2019. My instruments can be found in the hands of artists in twelve countries, heard on feature film scores, and many albums.

I am pleased to offer custom bespoke microtonal guitars, replacement necks, and conversions services online here. Please see my shop for standard listings, or contact me below for a consultation or project idea.