Live music, talks, podcast features
Full band shows with The Immutable String Band, solo acoustic sets, or duo configurations. Bluegrass, old-time, and original music.
From Lightning Talks to Keynotes, on cryptographic primitives, distributed systems, and the intersection of crypto-anarchy and traditional music.
Guest appearances on podcasts discussing blockchain, music, technology, and the future of decentralized creative economies.
Albums, singles, and collaborations
2024 - Full Album
Live & Studio Sessions
2026 - Full Album
Where bluegrass meets the blockchain
Justin Holmes is probably best known in bluegrass circles as "that throatsinging dude/guy." He plays guitar, mandolin, melodica, and tin whistle in his touring, rotating bluegrass band, The Immutable String Band.
With thousands of published contributions to open source cryptography and web codebases, Justin was until recently better known as a software engineer than a musician. His music blends bluegrass, old-time, and traditional music from around the world, with lyrics about cryptography, privacy, artificial intelligence, and the evolution of the internet.
Justin has been learning and practicing Tuvan Throatsinging and other overtone singing styles since 2004, and holds a brown belt in isshinryu karate.
47 shows across 5 continents
Performances, talks, and behind the scenes
For performances, talks, and appearances
Whether you're looking for a full band bluegrass show, a tech conference keynote, or a podcast guest appearance, I'd love to hear about your event.
Based in: St. Petersburg, FL
Touring: BONAFIDE
Reach out directly via
"Self-Proclaimed Bronze Medal Winner,
2027 Hackabilly Bluegrass Competition"
On stage and behind the scenes
