AIVA - The AI composing emotional soundtrack music
Music Memos by Apple - An app to capture your song ideas
Looperman - Free loops, beats, samples, sounds, acapellas, vocals, vsti plugins audio tutorials, upload download tracks, friendly and active community, updated daily
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Splice - Music creation, collaboration, and sharing made simple.
Endel - Personalized sounds to help you focus and relax