Listen to Piano Concerto No. 17 in G Major, K. 453: I. Allegro online. Piano Concerto No. 17 in G Major, K. 453: I. Allegro is an English language song and is sung by Rockabye Lullaby. Piano Concerto No. 17 in G Major, K. 453: I. Allegro, from the album Classical Melodies for Baby – Soothing Piano for Baby, Calm Classical Sounds, Stress Relief, was released in the year 2017. The duration of the song is 2:47. Download English songs online from JioSaavn.