Protopunk is a term used to describe the precursors of punk rock from the late 1960s to mid 1970s. Some have been cited by early punk musicians as influential. These artists came from many different musical backgrounds, and were not considered punk themselves.
↑Buckley, Peter (2003). The Rough Guide to Rock. London: Rough Guides. ISBN1-85828-201-2.
"The addition of Simon House (violin/keyboards) in 1974 mellowed the musical assault without damaging the fabric, but with proto-punk Lemmy on the bass the demands of heavy rock would always be satisfied." (p. 403)