Pull cards. Accept the brief. Ship a sketch. Daily. ComposerDeck turns the blank canvas into a deck of constraints that gets you composing in under 90 seconds.
Three steps. Repeat daily. Watch your output and your craft compound at the same time.
Tap DRAW. Pull 1–5 cards across chords, scales, instruments, tempo, and malus rules. Re-roll any card you hate, lock the ones you love.
A 90-minute timer starts. Your DAW or notebook is the only other tool you need. The constraints are non-negotiable. That's the whole point.
Drag-drop a WAV/MP3 to your draw. Public or private. Your streak ticks up. Other composers hear how you handled the same brief.
Pull a card and you get a clear instruction in two seconds. Tap it and you get a mini lesson: the theory behind the prompt, the artists who used it, and three concrete suggestions for how to start. No music degree required.
Every card is hand-written by working musicians. We don't generate, we curate. New cards added every Monday. Your daily draw is never the same twice.
Triads, 7ths, 9ths, slash, sus, polychords. Roman numerals included.
Major, modal, jazz, exotic, micro-tonal, octatonic, whole-tone.
BPM ranges, odd meters, polyrhythms, polymeter, swing percentages.
Acoustic, electronic, ethnic, found sounds, vocal techniques, prepared piano.
Compression, sidechain, parallel routing, reverbs, mid-side, saturation.
Density, register, dynamics, gestural shapes, atmospheric prompts.
Verse-chorus, AABA, through-composed, rondo, theme & variations.
Hard constraints. The rules you don't want, but need.
Multi-card briefs. Whole sessions in a single draw. Time-boxed.
We're not an AI generator, a sample pack, or a music theory app. Here's where we sit.
Real tracks made from real draws: the latest takes from the community feed, refreshed as musicians ship.
"Three months in, I've shipped more sketches than the last three years combined. The malus cards alone changed how I write."
"I came for the chord cards. I stayed for the daily streak. Pulling cards before coffee is now a non-negotiable."
"My students use it as a warm-up exercise. They've gone from 'I have no ideas' to 'I have too many.'"
"The submission slot keeps me honest. No more sketches dying in folders called 'ideas'."
"It's the only music app I have notifications enabled for. The morning push says 'your deck is shuffled' and I get up."
Yes. Daily draws, profiles, the blog, one custom deck and up to 10 audio submissions a month are free forever. ComposerDeck Pro unlocks the depth: unlimited decks and submissions, your full draw history, PDF and PNG exports, advanced stats, named studio presets and custom deck cover art. The core practice will always stay free.
No. About 30% of users are total beginners. Cards are the brief, not an exam. Swap any card you don't understand.
Yes. We're tool-agnostic. Logic, Ableton, FL Studio, Bitwig, Reaper, paper: whatever you compose with.
No. We help you compose, we don't compose for you. That's a feature, not a missing one.
Free forever. No credit card. Daily streak starts the moment you draw. Want the depth? See what Pro adds.