"i do not know" is a work for a capella choir. 

The setting is a short section of an e e cummings poem (with permissions).

The setting is for an SATB choir, which splits into 8 parts  in some places (SSAATTBB).

It was written in the first instance for the BBC Singers, and a recording of their performance is available to hear on

 www.soundcloud.com/mikala-bromley

 

The score is available to buy, and performance rights are available on application.