Deletion of Robert A. King (composer)

Comment: per  and . I believe sources exist to sustain the notability of this composer. This is a very complicated issue since King appears to have written under a large number of pseudonyms, but searching under Robert Keiser (another pseudonym of King - or even his real name?) brought up a number of sources that are not available in full online but appear to discuss him in detail. These sources appear to be independent RS's. See particularly https://books.google.pl/books?id=yyIKAQAAMAAJ&q=%22robert+Keiser%22+King&dq=%22robert+Keiser%22+King&hl=en&sa=X&ved=0ahUKEwiOidb-oqLfAhUop4sKHStIAV4Q6AEIOzAD 1 https://books.google.pl/books?id=Jmc5AQAAIAAJ&q=%22robert+Keiser%22+King&dq=%22robert+Keiser%22+King&hl=en&sa=X&ved=0ahUKEwiOidb-oqLfAhUop4sKHStIAV4Q6AEISTAG 2
Stance: keep
Cited policy: Wikipedia:Notability (WP:BASIC||WP:NEXIST)