Listen to Clarinet Concerto in A Major, K. 622: II. Adagio online. Clarinet Concerto in A Major, K. 622: II. Adagio is an Unknown language song and is sung by George Szell, Robert Marcellus and The Cleveland Orchestra. Clarinet Concerto in A Major, K. 622: II. Adagio, from the album Mozart to Relax, was released in the year 2021. The duration of the song is 7:45. Download Unknown songs online from JioSaavn.