"Art Song Central is principally an archive and directory of free, printable sheet music for singers and voice teachers. An emphasis is placed on standard classical and traditional repertoire. IPA transcriptions are now available for every German, French, Italian and Latin song in the index. "
"The works at Diction for Singers.com were published through their various hosts, starting in 1987 with Pst...Inc, then evolving through Caldwell Publishing Company, and now Diction for Singers.com, a subsidiary of Celumbra."
