Polka de W.R. (拉赫玛尼诺夫：波卡舞曲) (Live)-Vladimir Horowitz

Polka de W.R. is in A-flat major and in 2/4. The piece starts with semi-quavers in the right-hand and a melody in the left. After four bars, this then progresses to a melody with a quaver followed by triplet semi-quavers underneath. Meanwhile, the left-hand plays a typical polka oom-cha rhythm with firstly a bass note and then a chord above. After twelve bars of this, there is then a melody in the right-hand and chords in the left. This continues for sixteen bars. There is then semi-quaver runs with the right hand, accompanied by more chords in the left. The tempo then changes to Poco piu mosso and the main theme starts. This is then followed by another tempo change to Meno mosso and a key change to C-sharp minor. There is then another theme, followed by intricate arpeggio patterns in both hands. After several bars of this, there is another modulation back to A-flat major. Another theme then proceeds until there are two bars of fast, arpeggiated patterns with a sustained chord in the left-hand. This is followed by a further theme until the end, where there is an arpeggio in both hands, a tempo change to Meno mosso, a short, two bar phrase with a melody above and chords below. There is then a penultimate, low pitched chord; followed by a higher pitched chord with a dynamic marking of pianissimo (pp).