Plurivocality in the Liturgical Music of the Jews of San‘a (Yemen)
https://jewish-music.huji.ac.il/sites/default/files/02%20Plurivocalitty%20in%20the%20Liturgical%20Music%20of%20the%20Jews%20of%20San%27a%20Yemen%20pp%2034-67%20-%20S%20Arom%20-%20U%20Shavit%20N%20ben%20Zvi%20Y%20Mazor%20E%20Sheinberg%20incl%20title%20p.pdf