iMUSE (
Interactive Music Streaming Engine) is an
interactive music system used in a number of
LucasArts video games. The idea behind iMUSE is to synchronize music with the visual action in a video game so that the audio continuously matches the on-screen events and transitions from one musical theme to another are done seamlessly. iMUSE was developed in the early 1990s by composers
Michael Land and
Peter McConnell while working at
LucasArts. The iMUSE system is
patented by LucasArts, and was added to the fifth version of the
SCUMM game engine in 1991.