Working with students with specific secondary skill
It is not clear for me what "computer science" means for you. Is it at High School level?

If that is the case, you could try to introduce some of the mechanics behind "digital music". How it is processed from analog to digital. How it is compressed, how it is reproduced, ... What does it mean to be 8bit or 16bit, the bit-rate, the sampling frequency...

If the students are more into drawing/painting, you could do the same with image formats.