For the uninitiated, Band-in-a-Box (by PG Music) is an intelligent music accompaniment software. You type in the chords (e.g., C, Am7, Dm7, G7 ), pick a style (e.g., "Jazz Swing," "Bossa Nova," "Blues Shuffle"), and the software generates a professional backing track of bass, drums, piano, and guitar.
The "Band-in-a-Box Real Books 13,000 Tunes" package is a comprehensive digital collection of song files designed for PG Music's Band-in-a-Box (BIAB) band in a box real books 13000 tunes link
It is important to understand that PG Music does not own the copyright to the songs. They license the mechanism to display them. Consequently, they cannot ship these files with the melodies written out (due to copyright restrictions on the notes/heads). For the uninitiated, Band-in-a-Box (by PG Music) is