ComposerDeck is a small team of working musicians and engineers in Lyon, Paris and Berlin. We build the daily creative-constraint engine we wished existed: a deck of cards that gets you composing in 90 seconds, not generating in 9.
Challenge yourself · Inspire others.
ComposerDeck started in late 2024 as a homemade card deck. Lester, a producer in Lyon, kept hitting the same wall every morning: open the DAW, stare at the empty session, scroll Instagram, close the DAW.
Inspired by Brian Eno's Oblique Strategies and the constraint-based exercises taught at Berklee, he printed a deck of 200 cards. Pick one chord, one mode, one instrument, one rule you can't break. Compose for 90 minutes.
Within three months, his sketch folder went from 3 demos to 47 finished tracks. He showed the deck to friends. They wanted it digital. We built ComposerDeck.
A blank canvas is the enemy. Three random cards is the friend. Pick a chord, accept the brief, ship the sketch.
We will never generate music for you. AI music tools are not our competitors: they're our anti-mission. The hand that writes is yours.
90 minutes a day for 30 days beats one 45-hour weekend. We optimize for streaks, not masterpieces.
Daily draws, profile, submissions, blog: free. Always. We may add a Pro tier later, but the daily practice is non-negotiably free.
Every card is hand-written by a working musician. No prompts, no GPT, no AI fluff. New cards drop every Monday.
Logic, Ableton, FL, Bitwig, Reaper, paper, voice memos: we don't care what you compose with. We just hand you the brief.
Tiny on purpose. We compose, we ship, we read every email.
Producer, ex-music label. Started ComposerDeck in his bedroom. Still does. Writes most of the cards.
Designer & violinist. Made every pixel of the app and the deck. Believes typography is 80% of UI.
Engineer & sound designer. Builds the iOS app and keeps the servers honest. Plays modular at 3 AM.
Music teacher & writer. Edits the journal. Curates the deck of cards. Replies to your emails personally.
We're on day one. Here's the deck we're shipping towards.
Pull your first cards. The daily streak starts the moment you draw.