Listen to Piano Quintet in C Major, Op. posth: I. Molto placido online. Piano Quintet in C Major, Op. posth: I. Molto placido is an Instrumental language song and is sung by Ludmila Berlinskaya and New Russian Quartet. Piano Quintet in C Major, Op. posth: I. Molto placido, from the album Quintet+ (Live), was released in the year 2017. The duration of the song is 8:17. Download Instrumental songs online from JioSaavn.