By launching the Music app on your Apple Watch, you may listen to music via the speaker. Your playlist will display, and you may choose a song to immediately begin listening to it! If you already have Bluetooth headphones attached, they will connect instantly and take over the playback of any music you choose while in this mode. To utilize this function, swipe up from the bottom of the screen if you're in an app, or slide left if you're on the home screen. You'll see other alternatives, including "Now Playing," which is the one you want, so touch on it instead. When "Now Playing" displays, scroll down until you see music controls (two speakers), then tap them to start listening to music.