Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Soundscape - Sync your music with the open source community
Amper Music - Artificial intelligence music composer
Krue - Twitch for music: live streams from amazing musicians
Music Memos by Apple - An app to capture your song ideas
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.