Listen to Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso (Excerpt) online. Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso (Excerpt) is an English language song and is sung by Simon Tedeschi. Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso (Excerpt), from the album 100 Best – Classical Music, was released in the year 2015. The duration of the song is 3:53. Download English songs online from JioSaavn.