Arranger is a project on automatic instrumentation. In a nutshell, we aim to dynamically assign a proper instrument for each note in solo music. Such an automatic instrumentation model could empower a musician to play multiple instruments on a keyboard at the same time. It could also assist a composer in suggesting proper instrumentation for a solo piece.

Here are some sample instrumentation produced by our system (more samples here).

Mixture (input)	Predicted instrumentation
(guitar)	(piano, guitar, bass, strings, brass)