Listen to Cello Concerto in B Minor, Op. 104: I. Allegro online. Cello Concerto in B Minor, Op. 104: I. Allegro is an Instrumental language song and is sung by Mstislav Rostropovich, Boris Khaikin and Ussr State Symphony Orchestra. Cello Concerto in B Minor, Op. 104: I. Allegro, from the album Young Slava, was released in the year 2017. The duration of the song is 13:58. Download Instrumental songs online from JioSaavn.