A duet, for Piano, composed by Wolfgang Amadeus Mozart for two pianos and four hands.

A duet, for Piano, composed by Wolfgang Amadeus Mozart for two pianos and four hands.

Mozart's Adagio and Rondo (K. 617) was written for the armonica, or musical glasses (a set of tuned glass bowls) and a quartet consisting of flute, oboe, viola, and cello. The music is effective played as an organ solo. The Adagio may be registered "forte," in the style of Mozart's Fantasia (K. 608). The Rondo should be played on the flute stops. Arranged for organ by E. Power Briggs.

Mozart's orchestral-inspired Sonata in D Major, K. 311 contains elaborate pianistic treatment and an exciting sonata-rondo finale with a cadenza worthy of one of Mozart's concertos. The flashy third movement is full of many contrasts involving dynamics, mood and texture. Throughout the sonata, the left hand becomes a true partner in all aspects of the composition, and thematic material is spread over different registers of the keyboard.