| Guitar Crackers | Cees Hartog | |
| Tapas De Espana | Cees Hartog | |
| Guitar Timer | Cees Hartog | |
| De Kleine Gitaarstarter | Cees Hartog | |
| String Walker | Cees Hartog | |
| Gitaar Starter deel 2 | Cees Hartog | |
| All in One | Cees Hartog | |
| Gitaar Starter deel 1 | Cees Hartog | |
| Guitar Starter Pour Les Petits | Cees Hartog | |
| Gitarre Spiel Und Studienmaterial Vol.2 | Cees Hartog | |
| Spiel und Studienmaterial - Vol 1 | Cees Hartog | |
| Guitar Tripper | Cees Hartog | |
| Guitar Partner | Cees Hartog | |
| Popsongs for Classical Guitar 1 | Cees Hartog |
