The First Movement from the Keyboard Sonata in C K.19d for piano 4 hands is an intermediate level piano duet. The realization plays back at a tempo of 60 half note (minim) beats to the minute. The music editor suggests 64 minim beats to the minute as an ideal tempo for playing the movement. A light touch is required in a performance and all notes need to be clearly articulated. Playing Mozart requires a very consistent and even approach and the avoidance of exaggeration. As far are ornaments are concerned players should be imitating each other in their delivery. The short trill is a simple 4 note shape. This is music that is very much about melody and accompaniment and it is important for players to communicate its charm and beauty. The music editor’s preference is for a dry acoustic which is appropriate for the music and instruments of the period.
This sonata is likely to have been performed by the young Mozart with his elder sister Nannerl on a visit to London where the performing instrument was likely to have been a harpsichord. The music was only discovered in 1921 and whilst in the past it has been attributed to W.A Mozart the current view is that it was more probably composed by either his older sister Nannerl or his father Leopold. Suffice to say that much of Mozart's classical musical style is demonstrated in this sonata whichever one of the family composed it! The sonata has some very appealing musical content and as a work, most probably written by a child, it is interesting to play and compare to W.A. Mozart's later and more substantial piano 4 hands music such as the piano Sonata for Piano 4 hands in C K.521. There are several variants in terms of the scores available but the sheet music score and realisations are based on current performance practice. The accompaniment downloads available enable players to enjoy an ensemble music experience playing either the primo or secondo parts. The primo part sounds on the one channel of the stereo signal and the secondo part sounds on the other. Accompaniment 1 plays at 68 half note beats (minim) to the minute, Accompaniment 2 at 64 half note beats (minim) beats to the minute and Accompaniment 3 at 60 half note beats (minim) to the minute. There is a 4 bar count in featuring the sound of a wood block. When performing printing two pages of music onto one side of A4 offers a very practical solution for players.