Heller, Stephen. (1833–1888) 25 Etudes - Sheet MusicSheet music for 25 etudes by the important Hungarian pianist and composer. 25 pp. Left edge rough; overall fine. Upright folio. 10. 25 x 13. 5 inches (26 x 34. 5 cm). "A good friend of Berlioz, Heller was described by him in his Mmoires as a delightful humourist and learned musican, praising his melancholy spirit and devotion to the true gods of art To many, of course, he was and is known as the composer of studies, for which there was a considerable