Nostalgia, Op.55 by Antonio Alba is a habanera, a Cuban dance form that became popular in Spain and influenced many Spanish composers. The habanera is characterized by its distinctive rhythm pattern and often evokes feelings of melancholy and longing, which aligns perfectly with the title "Nostalgia." Antonio Alba (1873-1940) was a Spanish composer who worked during the late Romantic and early Modern periods, incorporating traditional Spanish musical elements into his compositions.