CentreStream Old Time Country Guitar Backup Basics Instructional BookThis instructional book uses commercial recordings from 70 different sides from the 1920s and early 1930s as its basis to learn the principal guitar backup techniques commonly used in old time country music. Topics covered include: boom chick patterns bass runs uses of the pentatonic scale rhythmic variations minor chromatic nuances the use of chromatic passing tones licks based on chords or chord progressions and more.