Choral Choir,Choral,TTBB Chorus - Level 3 - Digital Download SKU: A0.1426766 By Pratt and McClain. By Charles Fox and Norman Gimbel. Arranged by Steve Adamczyk. A Cappella,Film/TV. 6 pages. Kite & String Music #1007470. Published by Kite & String Music (A0.1426766). An a cappella arrangement of the theme song from the TV show Happy Days, for men's voices TTBB.