Listen to Mozart: Piano Concerto No. 6 in B-Flat Major, K. 238 - 1. Allegro aperto online. Mozart: Piano Concerto No. 6 in B-Flat Major, K. 238 - 1. Allegro aperto is an Unknown language song and is sung by Mitsuko Uchida, English Chamber Orchestra and Jeffrey Tate. Mozart: Piano Concerto No. 6 in B-Flat Major, K. 238 - 1. Allegro aperto, from the album In the Mood for Mozart, was released in the year 2021. The duration of the song is 7:11. Download Unknown songs online from JioSaavn.