The founder of Quiet Riot and Ozzy Osbourne's lead guitarist died in a plane crash while on tour with Osbourne in 1982.

His mother, Delores Rhoads, who runs the North Hollywood music school Musonia, recently increased the scholarship endowment in his name by $20,000 to a total $45,000, KNAC.com reported Tuesday.

She has donated a total $75,000 to the school in memory of her son including funds to the school's International Guitar Research Archive.