Music is just layered simple patterns and our brains LOVE IT.
Sound is pressure waves, musical notes are a specific pattern of pressure waves. Melodies are repeated musical notes. Songs are repeated melodies following standard structure.
Our brains love trying to decode and parse all these overlapping patterns.
Maybe not really a shower thought and more wild speculation.
We like music for the same reason we like games, stories and successfully accomplishing tasks.
It’s the vibe that it evokes.
Patterns evoke a vibe too.
Vibe = poetry emotion energy.
It’s a sensation like sight, sound, smell etc. Just a different kind.