Show HN: Lessong - Turn any song into a language lesson

Category: ai-ml

Tags: language-learning, audio-processing, music, ai, pipeline

Score: 7.3/10 (Innovation: 7, Technical: 8, Documentation: 8, Utility: 6)

Lessong is a Python tool that transforms any song into a language lesson by separating vocals, transcribing lyrics, translating lines, and generating a narrated audio lesson over a looping instrumental. It cleverly combines Demucs, ElevenLabs, OpenAI, and librosa for beat-aligned mixing and caching, making it a polished and technically impressive pipeline. The concept is refreshingly novel and the documentation is thorough, though its practical utility is currently limited by API costs and rights concerns.

Target audience: language learners and educators

Repository: https://github.com/eschnou/lessong · Python · MIT · 1 stars

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