"The modern sound system includes a multitude of speakers to provide the perfectly balanced soundscape: the center channel, left and right front speakers, a-bit-more-to-the-left and a-bit-more-to-the-right speakers, surround speakers, surrounding-surround speakers, AND VARIOUS OVERKILL TO ENSURE EVENTUAL DEAFNESS SPEAKERS!!!
And the all-important... subwoofer."
All about songs, lyrics, music, and sounds, except for spoken words outside of songs.
For tropes, see Audio Diegesis, Music Tropes, Music Video Tropes, and Sound FX Tropes.