Mark Seeley wrote about the Bartok Fourth Quartet:

>I doubt Bartok had the chiastic structure of the Psalms in mind when he
>wrote this particular quartet (then again, maybe he did-- I don't know),
>but there must be some sort of musical term or description for this type
>of structure or plan.

It is called "arch form" and you will also find it in many of the Bach
Cantatas.

Mimi Ezust <[log in to unmask]>