Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Aftertouch - Aftertouch – 3D MIDI Controller created and published by Kevin Nelson.
Event Hunt - Startups and Tech Events Curated By Locals
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
keezy - A colorful soundboard. Play with music.