I Built an AI Band with Vercel’s Eve Framework

This video shows how I took a simple Svelte + Tone.js sequencer and turned it into a multi-agent jam session using Vercel’s Eve framework. A producer agent takes a text prompt, sets the key and tempo, then hands off to specialized sub-agents for drums, bass, and keys. Each agent writes its own part and drops it onto the grid while the track keeps playing. Eve’s file-system approach makes the agents easy to define and durable across sessions, so the music keeps going even if the backend restarts. If you’re experimenting with multi-agent setups or looking for a practical example of Eve in action, this walkthrough covers the structure, the tools, and the live results. Subscribe and like for more! X: https://x.com/MarkSchellhas Chapters 0:00 – Building an AI band with Eve 0:22 – From manual sequencer to agents 1:00 – Producer + instrument workflow 3:05 – Eve’s file-system approach 4:27 – Sessions, turns and durability 5:19 – First live demo (hand-written arrangement) 6:21 – Agents start jamming 7:07 – How the brief and tempo update work 8:03 – Drummer, keys and bass agents 10:38 – Refining the prompt live 13:15 – Where Eve stores state on disk 13:57 – Music keeps playing after killing the agents 14:29 – Closing thoughts Useful links: Eve: https://github.com/vercel/eve Vercel AI Gateway: https://vercel.com/ai-gateway Tone.js: https://tonejs.github.io/