Six categories to build in

Explore the six tracks from Let's Build 2026. $1,000 in Stripe credits per winning team plus partner perks in every category.

Our panel of judges evaluates which categories each app fits and tags it accordingly. A single project can qualify and win in multiple categories — so an app spanning sound design and music games could place in both.

Closed·The 2026 challenges are closed — the winners are announced. Explore the results and demos.
01Discovery & IdeationClosed

Songstarter

Build tools that help musicians start creating. AI-powered prompt generators, mood-based beat starters, chord progression explorers, lyric idea engines — anything that helps someone go from blank page to first idea faster. If it sparks a creative starting point, it belongs here.

02Theory & AIClosed

Composition

Build tools that support the compositional process. Harmony assistants, melody generators, arrangement helpers, counterpoint tools, music-theory educators, AI co-writers. The goal is tools that understand musical structure and help creators make more intentional decisions — develop craft, not just generate output.

03Synthesis & TextureClosed

Sound Design

Build new instruments, synthesisers, effects processors, or sound shapers that connect directly into an Audiotool session. Custom oscillators, granular tools, generative soundscapes, noise design utilities. If it shapes, creates, or transforms sound at the signal level, this is your category.

04Play & LiveClosed

Music Games

Build interactive music experiences where sound responds to action. Rhythm games, generative live performance tools, audience participation apps, music visualisers, multiplayer jam experiences. If playing it feels as good as listening to it, it belongs here.

05DAW IntegrationClosed

Connect

Build tools that extend Audiotool by connecting it to other platforms, hardware, or workflows. MIDI controllers, DAW bridges, notation tools, real-time collaboration layers, hardware interfaces. If it makes Audiotool talk to something it couldn't before, this is your challenge.

06GrowthClosed

Marketing & Distribution

Build tools that help artists get their music heard and monetised. Playlist pitching tools, release planners, royalty trackers, fan engagement apps, social content generators, distribution helpers. If it helps a musician go from finished track to found audience, it belongs here.