This chapter introduces two frequently encountered chromatic chords: The Neapolitan and the common-tone diminished seventh chord. 21-1 Haydn, Theme from Variations in F Minor, Hob. XVII:6 21-2 Schumann, "Ich grolle nicht" 21-3 Brahms, Piano Quintet in F Minor, op. 34 21-4 Murolo, “Marechiaro” - Murolo, “Lo Guarracino” - Carsone, “Maruzzella” 21-5 Ellington and Strayhorn, “Satin Doll”