Listen to Concerto for Tuba: I. Allegro Moderato online. Concerto for Tuba: I. Allegro Moderato is an Unknown language song and is sung by Seong Dong Hoon. Concerto for Tuba: I. Allegro Moderato, from the album 악상 2020, was released in the year 2021. The duration of the song is 6:20. Download Unknown songs online from JioSaavn.