Listen to Seven Album Leaves for Piano, Op. 70: I. Allegretto semplice online. Seven Album Leaves for Piano, Op. 70: I. Allegretto semplice is an English language song and is sung by Bozidar Kunc. Seven Album Leaves for Piano, Op. 70: I. Allegretto semplice, from the album Kunc Plays Kunc, was released in the year 2013. The duration of the song is 0:51. Download English songs online from JioSaavn.