シャルル＝ヴァランタン・アルカン
En rythme molossique ("In molossian rhythm") is the second of the Études in the minor keys, Op. 39 for solo piano by the French composer Charles-Valentin Alkan, published in 1846. It is in D minor. The piece is in rondo form, with two episodes, and is mostly driven by the rhythm .