The Nocturnes, Op. 27 (No 7 and No 8) are two solo piano pieces composed by Frédéric Chopin. The Nocturne No. 8 is in D-Flat Major and is one of Chopin most famous nocturne. The pieces were composed in 1836 and published in 1837. Both nocturnes in this opus are dedicated to Countess d’Appony. Blair Johnston calls the main cadence, near the end of the piece, “one of the most glorious moments in Chopin’s entire output”.