Yes. Tholians, for example, emit several forms of radiation beyond our own thermal radiation and use that to communicate with one another. Trill symbionts, on the other hand, use electric impulses. And there are several species that are space-dwelling, so of course, sound doesn't carry in the vacuum of space, so music would mean very little to them. Other species are energy-based, and so have no corporeal bodies at all.
no subject