Notable improvisational musicians from the modern era include Keith Jarrett, an improvisational jazz pianist and multi-instrumentalist who has performed many improvised concerts all over the world; W. A. Mathieu a.k.a. William Allan Mathieu, the musical director for The Second City in Chicago, the first ongoing improvisational theatre troupe in the United States, and later musical director for another improv theatre, The Committee, an offshoot of The Second City in San Francisco; Derek Bailey, an improvisational guitarist and writer of Improvisation: Its Nature and Practice; Evan Parker; British saxophone player, the iconic pianists Fred van Hove (Be) and Misha Management (NL) and more recently the Belgian Seppe Burgers who improvise with two pianos tuned a quarter one apart.
Notable improvisational musicians from the modern era include Keith Jarrett an improvisational jazz pianist and multi-instrumentalist who has performed many improvised concerts all over the world; W A Mathieu aka William Allan Mathieu the musical director for The Second City in Chicago the first ongoing improvisational theatre troupe in the United States and later musical director for another improv theatre The Committee an offshoot of The Second City in San Francisco; Derek Bailey an improvisational guitarist and writer of Improvisation Its Nature and Practice; Evan Parker; British saxophone player the iconic pianists Fred van Hove (Be) and Misha Management (NL) and more recently the Belgian Seppe Burgers who improvise with two pianos tuned a quarter one apart