Ignaz Bösendorfer (1794-1882) was an influential Austrian piano maker and composer, best known for founding the Bösendorfer piano company in 1828. Though primarily recognized for his craftsmanship, Bösendorfer's work significantly impacted the development of the piano as an instrument. Bösendorfer's pianos are celebrated for their rich tone, innovative design, and unique semi-concert grand models that featured extra keys, extending the range beyond the standard 88. His instruments gained popularity among notable composers and pianists, including Franz Liszt, who appreciated the expressive capabilities of Bösendorfer pianos. Notable works associated with Bösendorfer include the various models produced under his name, particularly the Imperial concert grand, which features a 97-key range. The company has continued to thrive, producing high-quality pianos that are favored by concert pianists and composers. Bösendorfer's legacy lies in elevating the craft of piano making and contributing to the evolution of piano music, making his instruments a staple in concert halls and recording studios worldwide. His influence persists in today’s piano design and performance standards.