Ensemble-Brass 8 or more-Ensembles 1 and 2: trumpet horn (or trumpet) trombone...(+)
Ensemble-Brass 8 or more-Ensembles 1 and 2: trumpet horn (or trumpet) trombone (or or horn) trombone and tuba; Ensemble 3: 2 trombones (or horns) 2 trombones and tuba