I think the list will be long for a lot of us.
Except for the ELP & other Moog examples.
I just posted my very early years of music listening.
I was probably listening to Elvis before I even knew how to talk because my parents listened to him. But they also listened to C&W so that will always be an influence.
Songs like El Paso & Big Iron by Marty Robbins .
I wasn't an early Beatles fan & even later only some of their music.
I realize a lot of what they brought to the USA . The Rolling Stones deserve a lot of the credit as well . Also The Doors , Eric Burdon & the Animals , & the list goes on.
For C&W I don't want to leave out Patsy Cline , Johnny Cash or Willie Nelson.
Blue Grass Bill Monroe .
Folk Woodie Guthrie & Arlo , Joan Biaz , Bob Dylan even though Dylan has influence other genres as well , & one of my favorites Kris Kristofferson .
Jimi Hendrix , BB King . Ike & Tina Turner singing Proud Mary a CCR song.
Alice Cooper that I give credit for creating the rock band show . Sure he wasn't the first but was the first to take it to a new level of theatrics.