- FondsPP - Helen Martens fonds
- Series4 - Felix Mendelssohn research
- 6494 - Untitled
- 10 more...
- File11 - Annotated research on Mendelssohn
- File12 - Annotated writings on Mendelssohn by B. Alexander
- File13 - Annotated research and notes on Mendelssohn’s ‘Melusine’ overture
- File14 - Notes on ‘Melusine’ overture
- File15 - Notes on Mendelssohn’s expression through music
- File16 - Sheet music and notes on Mendelssohn’s musical style
- File17 - Annotated score by Mendelssohn
- File18 - Research and notes on Mendelssohn’s songs
- File19 - Notes on keys of Mendelssohn’s songs
- 38 more...