@Bee-liever:
I understand that.
I just opposed against another
button.
If we would follow that road, we could have ten more of those in several other MusicBee panel headers.
Looking again at my own suggestion I feel that that would be a very good solution.
It frees the space Steven would like to, (I think) it looks very good, it shows the current status, and it also indicates (and invites) that you can click it to toggle.
And at mouse hover-over, it could have a tool tip 'playing/selected' showing up.
In my opinion a right click menu would be a big step back.