Listen to Chopin: Nocturne No.1 in B flat minor, Op.9 No.1 online. Chopin: Nocturne No.1 in B flat minor, Op.9 No.1 is an English language song and is sung by Nelson Freire. Chopin: Nocturne No.1 in B flat minor, Op.9 No.1, from the album Study: 111 Pieces Of Classical Music While You Work, was released in the year 2013. The duration of the song is 5:34. Download English songs online from JioSaavn.