So the question
https://vexforum.com/t/sound-music-with-robotc/27449/1
was asked in an official forum so it can only be answered by staff.
Yes sounds and music can be played in robotc.
Here are a couple cool examples of things that can be done
https://www.youtube.com/watch?v=AyhLfjyZLOA
https://www.youtube.com/watch?v=V8S0WiqEK6s&list=UU2VUh96ifr9J-8NCZCiMUXQ
Here is an API explaining how it can be done.
http://www.robotc.net/wiki/Tutorials/VEX_Speaker_module
The first example is made using the tone command and every note being written out; it was a personal challenge for myself as well as a way to play large songs without wasting memory.
The second example is constructed using the play file command.