According to the Internet source given below, Jan Bach is an American composer born in Forrest, Illinois. He taught at the University of Tampa (Florida) from 1965 to 1966 and at Northern Illinois University in DeKalb, Illinois (music theory and composition) from 1966 to 2002. His primary performing instrument is the horn, and he is especially renowned for his horn pieces and especially well-known among hornists. He also plays the piano.

Websites:
	Jan Bach	Biography by wikipedia.org.

Brass Sheet Music

Rounds & Dances - Parts (Brass Quintet) Parts 60 pages. Publisher: E.C. Schirmer Music Company (EC.7.0290)

Rounds & Dances - Score (Brass Quintet) Score 48 pages. Publisher: E.C. Schirmer Music Company (EC.7.0289)