What is Band In a Box? A quote from the the pgmusic website tells all:
"The award-winning Band-in-a-Box is so easy to use! Just
type in the chords for any song using standard chord symbols (like C, Fm7 or
C13b9), choose the style you'd like, and Band-in-a-Box does the rest!
Band-in-a-Box automatically generates a complete
professional quality arrangement of piano, bass, drums, guitar and strings in a
wide variety of popular styles. (Jazz, Pop, Country, Classical and more.)