I'd love to see emotes that play 5-10 instrumentally consistent songs to the emote be present.
Additionally if other people start an instrument near the 1st emote user, then they would play together.
The trigger would be something like:
/lute
/flute
/drums
etc..
The effect would be something lke:
https://www.youtube.com/watch?v=hWPPD5ww0eA
Each would then have character animated to play the instrument, and an area around them all players could hear the emote (maybe toggle off in options).
I really like emotes that add theme, and depth to a game and this seems like a fantastic way to do that.