A find

I have found...
San Francisco's Girls Chorus! There's a CD where they give an excellent performance of the most difficult piece I sang in a choir.
Part: Alto II.
Magnificat by Nicola Porpora
"During the period of 1726 to 1739 Porpora was engaged as a teacher of music by the "Ospedali degli Incurabili", one of four famous Venetian orphanages renowned for their high level of musical performance. The orchestras and choirs of these asylums were composed of girl inmates. The "Magnificat" was composed for the aforementioned orphanage and received its first performance there."
(Notes from inside my tattered 1998 booklet for Magnificat - Niccola Porpora - Edited by Ralph Hunter - Edward B. Marks Music Company -copyright 1967.)

Future purchase: Music from the Venetian Ospedali
http://www.cdbaby.com/cd/sfgirlschorus3
15. Magnificat: Magnificat Anima Mea Dominum 0:51 MP3 $0.99
16. Magnificat: Et Exultavit 1:55 MP3 $0.99
17. Magnificat: Et Misericordia 1:44 MP3 $0.99
18. Magnificat: Fecit Potentiam 2:45 MP3 $0.99
19. Magnificat: Gloria Patri 1:07 MP3 $0.99
20. Magnificat: Sicut Erat in Principio 2:06 MP3 $0.99
Sicut erat in principio et nunc et nunc et semper, nunc et semper, et in saecula saeculorum amen