Soundslice
👤 Adrian Holovaty (Co-created Django; sold EveryBlock to msnbc.com (2009). A serious guitarist too — rare enough to build music software and mean it.)🌐 siteholovaty.comLinkedInGitHub
For 13 years a guitarist-engineer built the sheet music that plays back — then ChatGPT started sending him customers.
Will it work? · our read
Patience compounds. Near-perfect founder-market fit in a niche too small to draw rivals — but also too small to get big. The real moat is Adrian himself.
01How the money moves
Guitarists, teachers and publishers need notation that plays back
→
They subscribe ($5-$100/mo) or license the engine to embed
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Recurring subs + publisher licensing + a cut of course sales
02The numbers
13 yrs
Bootstrapped, no investors
about page
$500K+
Paid out to course creators
soundslice
3
People run it
about page
The $500K+ is cumulative payouts to creators on the store, not Soundslice's own revenue. soundslice.com
Revenue undisclosed; about $1M/yr is our outside estimate, not a stated figure.
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Soundslice — AboutHolovaty — Adding a feature because ChatGPT thinks it existsTechCrunch (2025)Wikipedia — Adrian HolovatySoundslice — PlansHolovaty — Notes on Soundslice
Revenue is NOT disclosed first-party, so the "about $1M/yr" headline is our outside estimate from team size (3), pricing ($5-$100/mo), 13 years of profitable survival and B2B licensing — not a stated number (tagged Estimate, not independently confirmed). The only disclosed money figure is $500K+ cumulative paid to course creators on the store, which is a creator payout / GMV-style proxy, NOT Soundslice's revenue. Documented and first-party: bootstrapped with no investors, an about-3-person team, founded 2012, and the 2025 ChatGPT ASCII-tab episode (Holovaty's own blog, corroborated by TechCrunch). Founder background — co-created Django, founded EveryBlock, sold to msnbc.com in 2009 — is on his site and Wikipedia. The failure-mode ("dies") is our read, not a stated post-mortem. We never score you.