'Aspen Waltz' is a lush a cappella original, by Randy Crenshaw, with a twelve-tone treatment of melody, supported by rich, Singers Unlimited-sytle chordal textures. Features soprano soloist, small group or section. Written by Bobby McFerrin and featured on his first album, 'Jubilee' is full of energy and fun. This arrangement is a cappella, with the bass singer doing an instrumental-like bass line throughout. It begins as a samba, goes to swing for a vocal improvisation solo and an ensemble 'soli' section, then back to the samba. 'Straighten Up and Fly Right' is a famous Nat Cole song heard on Natalie Cole's multi-Grammy winning Unforgettable album. There are solos for alto or tenor. Featuring traditional jazz-type harmonies, the feeling is bright with a lively tempo. 'Spring Can Really Hang You Up The Most' is a fun, beautiful piece fill with great jazz harmonies. 'Alice in Wonderland' is a sensitive ballad interpretation of the popular jazz waltz by Sammy Fain and Bob Hilliard. Ranges from unison opening to lush six-part harmony and features a tenor solo.