This warm-up is a partner song for the first two vocal parts, while the third part is continuous (optionally) and is written in bass clef for your lower, changing, or changed voices. The warm-up focuses on enunciation and getting the mouth muscles warmed up and moving. Part 2 also puts a bit of emphasis on intervals and could be sung entirely in a head voice. Isolated rehearsal tracks for each part are include in the kit. (from Music K-8, Vol. 17, No. 1)