Labels:bannister | bass horn | book | brass | euphonium | mirror | vase OCR: The Tuba AND RELATED INSTRUMENTS HE TUBA the largest and deepest member of the brass family consists of a huge brass tube that bends or folds around beginning ar the mouthpi ece and ending n large flared bell. Other bass inst ruments in the brass Family are the sousa phone and euphonium EUP HONIUM TUBA SOUSAPHONE farmily