Harmony & Theory
by Keith Wyatt & Carl Schroeder
Anthony Wellington recommends that all Bassology students work through this book. Bassology at Sea students are required to complete it before departing on the cruise. Many Bassology students start the book again as soon as they finish it!
Edly's Music Theory for Practical People 2nd Edition
by Ed Roseman
The only thing almost as fun as learning music theory from Anthony Wellington is learning music theory from a piano-playing frog. Bassology students and Bassology at Sea students are encouraged to use this workbook.
Chord Progressions for Songwriters
by Richard J. Scott
Each chapter provides a comprehensive, self-contained lesson on one of twenty-one popular chord progressions that every songwriter and musician should know inside and out.