Wolfgang Amadeus Mozart (1756-1791)
Adagio and Rondo for Glass Harmonica, Flute, Oboe, Viola and Violoncello, in C minor/major K 617 (1791)
[4:25] Rondo. Allegretto
The glass harmonica is a type of musical instrument that uses a series of glass bowls or goblets graduated in size to produce musical tones by means of friction.
The Adagio for glass harmonica in C major K.356(617a) by Wolfgang Amadeus Mozart was written at about the same time as the Adagio and Rondo for glass harmonica, flute, oboe, viola, and cello in C minor K.617 in 1791. Both of them are considered to have been composed for the glass harmonica player Marianne Kirchgessner.
On this video Thomas Bloch plays the glass harmonica without accompaniment.