Nusah

[Bob Wiener <wiener...>]

Would some list member(s) give a description of nusah -- its history -- when, 
where, and how it developed, how standard it is, its variety in different parts 
of the Jewish world, its role in Jewish liturgical music, how many kinds of 
nusah there are, and how it relates to other musical systems such as trope and 
maqam?   Are there any standard works or articles addressing these issues?  Are 
there any recommended recordings demonstrating nusah?  (What have I left out?)

Shabbat Shalom v'Hag Sameah (I hope that I got that right.)
Bob