It depends on the species-
If it is an aquatic salamander than it probably cannot hear the music anyway, aquatic species general have a poor sense of hearing.
Most terrestrial salamanders have a strong sense of hearing compared to aquatic ones, but shouldn't be bothered too much unless the sound is loud enough to damage their ears. The only salamanders I would worry about are blind salamanders. Because of their lack of eyesight, they use there sensitive hearing to navigate and get information about whats around them.
