Deletion of Tonika

Comment: on the basis of http://www.sofiaecho.com/article/musical-family-says-farewell/id_3463/catid_32 this farewell concert article, the only significant news story I could find in English via Google News Archive, which strongly suggests passage of . No Google Books results. Presumably there are sources in Bulgarian. (I don't know how the end of the Cold War could have meant the "loss" of sources. It wasn't exactly an era of anarchy. I can see how those sources would not appear online
Stance: keep
Cited policy: Wikipedia:Notability (WP:BAND)