Deletion of Clifford Gilberto

Comment: per nom, does not meet . I found some  coverage, with the exception of one source (https://books.google.es/books?id=uikEAAAAMBAJ&pg=PA44&dq=%22Clifford+Gilberto%22&hl=es&sa=X&ei=cAi6VJ7zE8mwUfrugfAB&ved=0CCgQ6AEwAQ#v=onepage&q=%22Clifford%20Gilberto%22&f=false CMJ New Music Monthly Nov 1998) that can help but it is not enough to establish . if additional non|routine  are found with significant coverage I would change my vote
Stance: delete
Cited policy: Wikipedia:Notability (WP:MUSBIO||WP:ROUTINE||WP:GNG||WP:ROUTINE||WP:RS)