Charlotte Kaiser places great emphasis on a concert repertoire with a wide variety. Besides performing baroque and original classic literature (including Domenico Scarlatti, Gabriele Leone, Nepomuk Hummel and Ludwig van Beethoven) solo or accompanied by cembalo or guitar her interests also lie in contemporary interpretations of romantic mandolin literature. A favourite of hers is Raffaele Calace, a grand master of this period, whose preludes to this day belong to the most virtuous compositions for solo mandolin distinguished by technical ambition and deep musical emotion.
Most of all Charlotte is fascinated by the interpretation of contemporary compositions, for example by Yasuo Kuwahara or Heinrich Konietzny. Their compositions, which require highest virtuosity combined with expressive rhythm and broad dynamic spectrum, open new ways of expression to the mandolin thus offering the listener entirely new insights into the world of mandolin music.
In addition to her solo activities, Charlotte collaborates on different events in various chamber ensemble-instrumentations, for example in plucked string quartets (two mandolins, mandola, and guitar) or with accordion. Also, she adapts violin literature (e.g. violin concerts by Johann Sebastian Bach) to the mandolin letting them sound in new ways. These adaptions create opportunities to perform as a soloist in orchestras beyond original mandolin concerts. Examples of original mandolin literature within the framework of the classic concert program are concerts by Hummel or Vivaldi, as well as stage music with the mandolin for the operas Don Giovanni (Wolfgang Amadeus Mozart) or Otello (Guiseppe Verdi).