MIDI

MuseNet: OpenAI's Transformer-Based Multi-Instrument Music Generation System

OpenAI released MuseNet, a deep neural network capable of generating 4-minute musical compositions across 10 instruments and multiple styles. The system uses the same large-scale transformer architecture as GPT-2, trained on hundreds of thousands of MIDI files to predict the next token in a sequence. MuseNet discovered patterns of harmony, rhythm, and style without explicit musical programming, demonstrating the generality of the GPT-2 unsupervised approach beyond text.