MuseNet is a deep neural network that generates 4-minute musical compositions using 10 instruments. It can also combine styles from country, Mozart, and the Beatles. MuseNet was not programmed with an understanding of music. Instead, it discovered patterns of harmony and rhythm by learning to predict which MIDI file will contain the next token. MuseNet uses the same unsupervised general-purpose technology as GPT-2, which is a large-scale transformer model that predicts the next token in a sequence of audio or text. MuseNet can mix generations in new ways because it is familiar with many styles. We are excited to see how musicians, as well as non-musicians, will use MuseNet for new compositions. Start generating by choosing a style or composer, and an optional start to a famous piece. This allows you to explore the many musical styles that the model can create.