Listen to Nocturnes, Op. 9: Nocturne 1 in B flat minor Larghetto online. Nocturnes, Op. 9: Nocturne 1 in B flat minor Larghetto is an Unknown language song and is sung by Beautiful Pianists. Nocturnes, Op. 9: Nocturne 1 in B flat minor Larghetto, from the album Perfect Piano The 200 Best Piano Classics Part 1, was released in the year 2018. The duration of the song is 5:33. Download Unknown songs online from JioSaavn.