This book from Hal Leonard is an excellent for the intermediate brass quintets with 14 songs to learn and play.
Song List:
Cantate domino from Musica Divina (Pitoni)
Gavotte from Cello Suite No. 6, BWV 1012 (Bach)
Greensleeves (Traditional)
Hava Nagila (Traditional)
High Barbary (Traditional)
Just a Closer Walk (Traditional)
Londonderry Air (Traditional)
Pilgrim's Chorus from Tannh¤user (Wagner)
Prayer from H¤sel und GretelK (Humperdinck)
Shenandoah (Traditional)
Simple Gifts (Traditional)
The Drunken Sailor (Traditional)
The Libery Bell (Sousa)
This and That from Rigoletto (Verdi)