I'm not saying music died in 1975. 65-75 was the Golden age.
Disco - barf
Punk took some getting used too. A few good bands Ramones, Social Distortion.
The "Hair" Bands of the 80s. - freaking noise. White Snake, Van Halen, AC/DC, Mottley Crew, etc. They all sounded alike.
KISS:Make up with a few good/great songs - Why the paint? I don't get it.
The screaming banshee women of the early 90s- Mariah Carey, Celineon Dion, Paula Adbull - I'd prefer to jab sharp pencils in my ears.
I recently discovered New Order 80/90s - great music.
Blues is great too.
Best song writer ever - Paul Simon.
Best vocals - Tossup between Eric Burdon - Jim Morrison.
Guitar - Carlos Santana or Eric Clapton.