| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Christmas Times Two: Evenly Leveled Duets for Early Intermediates | 978-1-7046-0842-6 (1-7046-0842-2) | 2019 |
| Hymns Refreshed 2: Sacred Solos for Late Intermediates | 978-1-7944-2715-0 (1-7944-2715-5) | 2019 |
| The Worship Series Vol. 2.5: Sacred Solos for Late Beginners | 978-1-7989-4723-4 (1-7989-4723-4) | 2019 |