Show HN: A virtual recording studio where you direct session players

Daydream’s web-based Studio is a browser recording environment that lets you create complete tracks by supplying a single part - via text prompt, uploaded audio, or mic recording - and then booking virtual session players who play along in real time. The app analyzes tempo, key and chords, displays a chart, and lets you drag players onto tracks; players interpret your part and follow melody, rhythm and harmony while you direct them live (make parts simpler or busier, softer or brighter, request new takes, change feel). You can record whole takes or select bars, export a mix or stems, download MP3s, copy embed links, and share projects with others.

Specific interface and workflow details matter: Studio is optimized for desktop and labeled a research preview, so it evolves and may break; live recordings are up to two minutes and require headphones to avoid bleed. Each session player has configurable metadata (name, instrument, sound prompt, play style, and short blurb), you can shuffle or customize players, and controls include space/return for transport and drag-to-select bars for recording. Options let you bias how strictly players follow melody, rhythm, or chords, and the product solicits feedback on how close results are to your intent - making it aimed at rapid prototyping and directed, interactive arranging.