Gottfried Weber (1779-1839), who is known to most musicians today only as a theoretician, composed songs for voice and piano, choral works and oratorios, and a large number of pieces for flute and guitar. It is thanks in part to Weber's thorough knowledge of the playing technique
of these two instruments that his compositions for them – at least as regards the content of the flute part – can still stand alongside the sets of variations by Schubert or Silcher as imaginative and brilliant practice or recital pieces. As we see from the original title, the Freischütz Variations can be performed either soloistically or with guitar accompaniment. (...)
Our new edition prints the text of the first edition. To make it possible to play the piece in the more readily available combination of flute and piano, the extremely modest guitar accompaniment has been supplemented by a more ambitious piano version which draws more strongly on C. M. von Weber's original. (Martin Gümbel, editor)

Variationen op. 37 über ein Thema aus der Oper Der Freischütz von C. M. v. Weber