"Alexa, play Kendrick Lamar on Spotify."
Just like that, I have music throughout the house and in the front and back yards. You can also get more specific with commands in order to limit where the music plays, what music service is polled, etc.
It is much easier than pulling out a device, navigating to the application, typing in a search string, selecting the artist, and clicking shuffle playback for all of the artist's songs.