Noter
Original
Billings, William. The Psalm-Singer's Amusement. voices. Classical. Methods. Psalms. Religious works. Anthems. For 4 voices. For unaccompanied voices. Scores featuring the voice. English language.
Oversettelse
Billings, William. I Salme-Singers Amusement. stemmer. Klassisk. Metoder. Salmene. Religiøse verker. Anthems. For 4 stemmer. For enslige stemmer. Skårer med stemmen. Engelsk språk.