All of his music, except for one opera, one oratorio, and a few collections of instrumental music, went missing with the spoils of war after World War II, but was given back to Hamburg by Yerevan, in Armenia, in 1998.
In 1761 Johann Mattheson published an extended translation with sharp remarks on the biography of Mainwaring.
This attribution was repeated in the earliest known Continental source, Johann Mattheson's Der vollkommene Capellmeister (1739).
Johann Sebastian Bach | Johann Wolfgang von Goethe | Johann Strauss II | St. Johann in Tirol | Johann Heinrich Pestalozzi | Johann Albert Fabricius | Johann Christian Bach | Johann Georg Wagler | Johann Pachelbel | Johann Nepomuk Hummel | Johann Gottfried Herder | Johann Nestroy | Johann Joachim Winckelmann | Johann Gottlieb Fichte | Johann Bernhard Fischer von Erlach | Johann Homann | Johann Friedrich Böttger | Johann Kuhnau | Johann Heinrich Lambert | Johann Friedrich Blumenbach | Johann Wilhelm von Müller | Johann Wilhelm, Elector Palatine | Johann Mattheson | Johann Jakob Engel | Johann Gustav Droysen | Johann Gottfried Schadow | Johann Georg Faust | Johann Friedrich Julius Schmidt | Johann Christoph Adelung | Johann Baptist von Spix |
Kusser's works are now rarely played, but he influenced the following generation of composers, such as Reinhard Keiser, Johann Mattheson, Georg Philipp Telemann, Christoph Graupner, Georg Caspar Schürmann and Georg Friedrich Händel.