The Complete Idiot's Guide® to Music Theory is a comprehensive guide for beginning and intermediate musicians to keys, chords, composition, harmonies, progressions and more, including arranging, instrument ranges, and chords and styles for blues, jazz and rock. Targeted at music students and self-taught musicians, this book helps them build their musical knowledge from notes to key signatures. Whether the reader is a new guitarist who wants to write down an original song, a band member who wants to do a simple arrangement for a band, or a music student who needs a helping hand, this book will provide everything a musician needs to know about the rules, theories, formulas, notations and keys behind their music.