Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Gonic - music streaming server / free-software subsonic server API implementation - sentriz/gonic
AMPLI.FI - Live online music community. Twitch for tunes.
Swing Music - Beautiful and fast music streaming server.
WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.
Polaris - Polaris is a music streaming application, designed to let you enjoy your music collection from any computer or mobile device.