Ritchie Valens is another great artist. He didn't get a lot out because he unfortuantely passed away the day the music died with Buddy Holly and Big Bopper. One of Valen's lasting hits is "La Bamba" which is mostly a 1 4 5 intervals it's really rocking.
"Oh Donna" was another lasting hit that discusses a woman named Donna. Just a typical early rock love song, but a little slow.
"Ooh My Head" is another song that you can find on youtube looks pretty cool and sounds good.
Another lasting hit "Come on Let's Go Little Darlin" people seem to keep listening to even though the music is getting older and older. It's pretty upbeat and fun.
One of my favorite Valens songs is"We Belong Together." It's an interesting common interval song with nice lyrics about a person infatuated in an intense dyadic relationship with another human being.