Martin Baker’s arrangement of O filii et filiæ can be performed with organ accompaniment, or with organ, three trumpets, three trombones and timpani, via the purchase of this set of parts. Please note that the organ part slightly differs in the version played with the instruments. In this pack of parts there is one copy of each of the following:

Full Score
Trumpet I
Trumpet II
Trumpet III
Trombone I
Trombone II
Trombone III
Organ
Timpani

The full score and parts are fully compatible with the vocal score (available separately).