Listen to Cello Concerto, Op. 104: I. Allegro online. Cello Concerto, Op. 104: I. Allegro is an Instrumental language song and is sung by Alexander Zagorinsky, Rashit Nigamatullin and Symphony Orchestra of the Belgorod State Philharmonic. Cello Concerto, Op. 104: I. Allegro, from the album Tchaikovsky, Weinberg, Dvořák, was released in the year 2021. The duration of the song is 16:01. Download Instrumental songs online from JioSaavn.