Pull a brief: one harmonic idea, one rhythmic rule, one sound or songwriting constraint. Accept it as it comes, set a timer, ship a sketch. Click any card to reroll just that one.
This page draws from a public slice of the deck (about 130 cards). The app draws from all 619, filtered by genre, difficulty and card type. Free, forever.
A challenge generator is only useful if you obey it. The failure mode is obvious: you draw, you think "hmm, not today", you draw again, and twenty minutes later you have browsed forty briefs and written nothing. So here is the method we use every day in the ComposerDeck studio, and it works just as well on this page.
Every challenge here is a real card from the ComposerDeck deck: 619 cards across 17 types, tagged with 152 genres and four difficulty levels, written by musicians for musicians. The generator groups them so that a hand always mixes different kinds of decisions:
The app adds what a static page cannot: genre faders (Jazz, Lo-fi, Hip Hop, Techno, Film Score and 147 more), difficulty, audience (producer, songwriter, instrumentalist), your draw history, curated decks, and a place to share the sketch you made. The daily practice there is free, and stays free.
Some days you know what you are stuck on. These guides pull the relevant cards out of the deck and explain how to use them.
Every producer knows the blank-project feeling: infinite options, zero momentum. Constraints fix that by making the first decision for you. Once "6/8, sus chords, no more than two effects per track" is on the table, your brain stops asking "what should I make?" and starts asking "how do I make this work?", which is a question it is much better at. The psychology of creative blocks goes deeper; the short version is that a good constraint is a way of borrowing decisiveness from a deck of cards.
That is also why the cards are specific rather than vague. "Write something sad" is a mood, not a brief. "Minor plagal cadence, 12/8, lyrics from a random book page" is a brief: you can tell when you have obeyed it, and you can tell when you are done.
Yes. This page is free, needs no account and no download. The full ComposerDeck deck, with more than 600 cards, 150 genres and a daily practice built around it, is also free in the web app and on iOS. A Pro tier exists for depth (history, exports, unlimited decks), never for the daily draw.
Each card is drawn with your browser's cryptographic random generator from a public slice of the deck, one card per group, so a hand never contains two harmony cards unless you switched the other groups off. Click any card to reroll only that one.
Of course. A challenge card is a constraint, not a sample or a melody. Whatever you compose from it is entirely yours.
No. Nothing on this page is generated by a model. Every card was written by a musician, and the only random part is which cards you get. ComposerDeck has no AI music generation: it helps you compose, it does not compose for you.
This page draws from about 130 cards and forgets your hand when you leave. The app draws from all 619, filters by genre, difficulty and card type, keeps your draw history, lets you build and share curated decks, share the sketch you made, and take part in the weekly community challenge.
Not on this page, which draws genre-agnostic cards on purpose. Every genre page opens a genre-filtered draw in the app in one click: Jazz, Lo-fi, Hip Hop, House, Techno, Pop, R&B, Funk, Ambient, Trap, Film Score.
In the app, yes: contribute a card to the community deck, or build a private deck of your own cards and draw from it. Approved community cards join the shared pool.
619 cards, 152 genres, a weekly community challenge, and a place to share what you made. Free, no card to start.
Pull your first cards