Sundae - All-in-one collaborative workflow for music teams
Moshpyt - Music collaboration & monetization
My Music Moments - A community of music curators and producers
aux.app - A free web-based music platform to play music from other popular online streaming services.
Spotlight - With Spotlight, you can find apps, documents, and other files on your Mac. And with Spotlight Suggestions, you can also get news, sports, movies, weather, and more.
AMPLI.FI - Live online music community. Twitch for tunes.