Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
AMPLI.FI - Live online music community. Twitch for tunes.
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.
AIVA - The AI composing emotional soundtrack music
Amper Music - Artificial intelligence music composer