I'm an Apple Music subscriber. While that lets me choose any song I want to listen to at anytime with no restrictions, the Apple Music interface is frustrating to navigate while driving. This meant resorting to pre-picked playlists or devoting the entirety of the commute to a preset playlist/radio. However, I recently realized that Siri on the Apple Watch will let me spontaneously choose songs, albums, artists, or even a radio station/preset playlist! I can just say "Hey Siri, play Justin Bieber's new album," and Apple Music will automatically begin playing JB's new album, Purpose (despite JB's late personal.. history, I have found his new album to be quite good). Now, I just spontaneously choose whichever album I'd like to listen to, such as Taylor Swift's 1989, or Kendrick Lamar's Good Kid Maad City.