Calls but no Music with S10 plus?

Hey guys. My EP-T21 ear buds, hook up and work great with calls. But when I fire up Spotify or you tube to listen to a little music on my Samsung S10, I cannot get the songs to come through the ear buds. Touch control only responds to turning on Bixby. cannot get it to do anything other than turn on Bixby…1 tap, 3 taps, 5 taps, long press, short press etc… please advise…

Do you mean that the headset is paired with Samsung S10, and the music is played by external sound when connected to it. Is there no sound through the headset?
If so, please try to reset the headset.
Please clear the pairing record and pair again.