| title | ISBN-13 | year of publication |
|---|---|---|
| Basics of Keyboard Theory: Answer Book Levels Preparatory to 10 | 978-1-891757-11-2 | 2007 |
| BKT1 - Basics of Keyboard Theory - Level 1 | 978-1-891757-01-3 | 2007 |
| BKT2 - Basics of Keyboard Theory - Level 2 | 978-1-891757-02-0 | 2007 |
| BKT3 - Basics of Keyboard Theory - Level 3 | 978-1-891757-03-7 | 2007 |
| BKT4 - Basics of Keyboard Theory - Level 4 | 978-1-891757-04-4 | 2007 |
| BKT5 - Basics of Keyboard Theory - Level 5 | 978-1-891757-05-1 | 2007 |
| BKT6 - Basics of Keyboard Theory - Level 6 | 978-1-891757-06-8 | 2007 |
| BKT7 - Basics of Keyboard Theory - Level 7 | 978-1-891757-07-5 | 2007 |
| BKT8 - Basics of Keyboard Theory - Level 8 | 978-1-891757-08-2 | 2007 |
| BKT9 - Basics of Keyboard Theory - Level 9 | 978-1-891757-09-9 | 2007 |
| BKT10 - Basics of Keyboard Theory Level 10 | 978-1-891757-10-5 | 1997 |
| BKTPREP - Basics of Keyboard Theory - Preparatory Level | 978-1-891757-00-6 | 2007 |
| Julie Johnson's Guide to AP Music Theory | 978-1-891757-12-9 | 2010 |
J J · J. Johnson · J.M. · J. M. Johnson · J. McIntosh · Julie Johnson · Julie M. · Julie M. Johnson · M J · M. Johnson