Claude Opus 5.5 Composed Retro Game Music From a Single Prompt — Here Is What That Means
Reading Time: 4 minutesSimon Willison’s Scrimshaw Jukebox experiment shows Claude Opus 5.5 designing its own music notation format, building a browser-based player for it, and composing retro-style game music — all from one prompt. The capability is real but unverified at scale, and key limitations around audio export, format portability, and model-tier access mean non-technical users should approach it as a promising prototype, not a finished workflow.