Wikipedia:Articles for deletion/Cathedral Quartet
has a major claim of significance with five grammy nominations and also has significant coverage in reliable sources such as an AllMusic bio https://www.allmusic.com/artist/the-cathedral-quartet-mn0000064225/biography here which I will add to the article. They also have significant press and book coverage and therefore deserve to be included, passing 
— User:Atlantic306, 14:05, 8 December 2018 (UTC)
Stance: keep
Cited policy: WP:NMUSIC (Wikipedia:Notability)