Listen to Concerto for Clarinet and String Orchestra in C Minor, Op. 31: II. Adagio ma senza rigore online. Concerto for Clarinet and String Orchestra in C Minor, Op. 31: II. Adagio ma senza rigore is an English language song and is sung by Richard Stoltzman. Concerto for Clarinet and String Orchestra in C Minor, Op. 31: II. Adagio ma senza rigore, from the album Richard Stoltzman plays Clarinet Concertos, Sonatas and Chamber Music, was released in the year 2012. The duration of the song is 12:36. Download English songs online from JioSaavn.