Boom Boom Boom!
An audio visualisations app by Jack Wild that uses your microphone to control the visuals on the screen. A nice idea and evolution from other music based web apps.
A charming collection of animation with the brilliantly simple trigger mechanism of keyboard strokes.
Red Bull Music Academy know how to make a scene, check out this dope site for their latest academy compilation. Site by http://rds.zone
Ableton have delivered a strong and consistent identity across their products; the website and digital content make no exception. This site contains lots of nice details, but most notably the responsive design is where it's at.
This novel interaction for playing music previews puts the appropriate amount of focus on the sound design rather than the visuals.