Definition: The word 'jk simmon' refers to the Australian jazz pianist and composer JK Simmons. <0x0A><0x0A>Detailed definition:<0x0A>JK Simmons (1943-2021) was an Australian jazz pianist and composer who had a significant impact on the world of jazz piano. He was known for his virtuosic playing, innovative compositions, and collaborations with a wide range of musicians, including Miles Davis, Herbie Hancock, and Wayne Shorter. Simmons' music blended classical techniques with jazz improvisation to create unique and distinctive soundscapes. He was also known for his work with various ensembles and collaborators throughout his career. <0x0A><0x0A>In summary, the word 'jk simmon' refers to an Australian jazz pianist and composer who had a significant impact on the world of jazz piano.