Alfonse Hasselmans (1845-1912) was a prominent Belgian harpist and composer known for his significant contributions to the harp repertoire. His work primarily falls within the classical genre, where he excelled in both performance and composition. Hasselmans studied under notable figures such as the renowned harpist and composer, Édouard Lalo, and later became a leading figure in harp pedagogy. Notable works by Hasselmans include "La Source," a celebrated piece for harp that showcases his lyrical style and technical prowess, and various studies and etudes that are integral to harp instruction today. His compositions are characterized by their intricate melodies, rich harmonies, and a blend of romantic expressiveness, which have left a lasting impact on harp music. Hasselmans was also influential as a teacher, having held a position at the Paris Conservatoire, where he educated a generation of harpists. His contributions not only elevated the status of the harp in the classical music world but also expanded its repertoire, ensuring that it remains a vital instrument in both solo and orchestral settings. His legacy continues through the works of his students and the ongoing performance of his compositions.