Pocket Music Dictionary published by Hal Leonard Publishing Co..
Dictionary of Music Terms
Over 2,200 music terms defined concisely:
-Notation and theory terms
-Instruments, including folk and ethnic instruments
Pop music, electronic music, and music business terms
Dictionary of Musicians
More than 450 capsule biographies of composers and other musicians, noting dates of birth and death, nationality, historical period, areas of composition, and major works.
Reference Charts
Instant, at-a-glance summaries of the essentials of music:
-Notation signs and symbols, including guitar tablature
-Scales, modes and key signatures