Listen to Apollon musagète (Apollo Musagetes): IV. Variation de Calliope, Allegretto online. Apollon musagète (Apollo Musagetes): IV. Variation de Calliope, Allegretto is an English language song and is sung by Novosibirsk Chamber Orchestra. Apollon musagète (Apollo Musagetes): IV. Variation de Calliope, Allegretto, from the album 50 Best of Ballet (Platinum Classics), was released in the year 2011. The duration of the song is 1:28. Download English songs online from JioSaavn.