Wikipedia:Articles for deletion/List of songs about London
It doesn't seem to me to be indiscriminate. "List of songs which include words which contain none of the letters from 'catfish'" would be indiscriminate. This seems to be thematic and not unreasonable given 
— User:TreasuryTag, 12:45, 19 April 2011 (UTC)
Stance: keep
Cited policy: WP:LISTPURP (Wikipedia:Manual of Style)