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.
Smoke - Everything 1973 - https://www.youtube.com/watch?v=nQoGSIO2H94 (entry point 20m50s)
Kollectiv Live 1973 - https://www.youtube.com/watch?v=LFduBZSUO7s
Vladimir Ussachevsky Electronic 1950 - https://www.youtube.com/watch?v=u_cjxT5baQY
Missus Beastly - Dr Aftershave & The Mixed Pickles 1976 - https://www.youtube.com/watch?v=86jwsj_egms
Pink Floyd Atom Heart Mother 1970 - https://www.youtube.com/watch?v=2ErOK3kgbDc
Ramsey Lewis Trio Live 1983 - https://www.youtube.com/watch?v=S8QZUi3Htrg
Herbie Hancock Cantaloupe Island Live 1991 - https://www.youtube.com/watch?v=GZOkyQx3jIw
Flying Luttenbachers - Fist Through Glass 1995 - https://www.youtube.com/watch?v=T4e20WDe7lA
William Onyeabor - Let’s Fall in Love 1983 - https://www.youtube.com/watch?v=tjoCIiGXIhE
Manu Dibango - Zoom 2000 1972 - https://www.youtube.com/watch?v=BHCXszR1ebw&t=1158s
Keith Jarrett Solo Concerts Bremen/Lausanne 1973 - https://www.youtube.com/watch?v=Kp68gVWLymA
Agitation Free Live 1973 - https://youtu.be/-VzUVszWQdk?t=76
Tommy Guerrero - Road to Knowhere 2018 - https://www.youtube.com/watch?v=N0LZ20ppkNo