Rap song and music video built from scratch in code

Someone on Reddit asked Claude Opus 5.5 to make a rap song and music video about itself, and it built the whole thing from scratch in code. 🤯 Every sound, including the rapping voice, was written in TypeScript. It took one prompt and about two hours. Here's what Claude did: → Researched memes about itself, then wrote the lyrics. → Built a voice synthesizer from scratch, with hand-written pronunciations for every word in the song. → Wrote a rhythm engine that puts every syllable on the beat. → Created every instrument from raw sound waves: kick, snares, hats, bass, piano, and an 8-bit lead. → Mixed and mastered the track. → Checked its own work with speech recognition to make sure the lyrics were understandable, then fixed what wasn't. → Drew the music video frame by frame

— Vaibhav Sisinty (@VaibhavSisinty) Sep 25, 2026