- E-bookThe Complete Opera BookGustav Kobbé
- E-bookThe Complete Opera Book The Stories of the Operas, together with 400 of the Leading Airs and Motives in Musical NotationGustav Kobbé
- E-bookThe Complete Opera BookGustav Kobbé
- E-bookHow to Appreciate MusicGustav Kobbé
- E-bookThe PianolistGustav Kobbé
- E-bookThe Loves of Great ComposersGustav Kobbé
- E-bookThe Pianolist A Guide for Pianola PlayersGustav Kobbé
- E-bookHow to Appreciate MusicGustav Kobbé
- E-bookThe Great Operas of Vincenzo Bellini - An Account of the Life and Work of this Distinguished Composer, with Particular Attention to his OperasGustav Kobbé
- E-bookThe Loves of Great ComposersGustav Kobbé
- E-bookThe Voice Its Production, Care and PreservationFrank E. Miller
- E-bookThe Complete Opera BookGustav Kobbé
- E-bookHow to Appreciate MusicGustav Kobbé
- E-bookThe Pianolist A Guide for Pianola PlayersGustav Kobbé
- E-bookThe Loves of Great ComposersGustav Kobbé
- E-bookThe PianolistGustav Kobbé