Wow! What a genius and he got mad at the audience for coughing! Classic!
Jarrett is notoriously intolerant of audience noise, including coughing and other involuntary sounds, especially during solo improvised performances. He feels that extraneous noise affects his musical inspiration. As a result, cough drops are routinely supplied to Jarrett's audiences in cold weather, and he has even been known to stop playing and lead the crowd in a group cough. This intolerance was made clear during a concert on October 31, 2006, at the restored Salle Pleyel in Paris. After making an impassioned plea to the audience to stop coughing, Jarrett walked out of the concert during the first half, refusing at first to continue, although he did subsequently return to the stage to finish the first half, and also the second. A further solo concert three days later went undisturbed, following an official announcement beforehand urging the audience to minimize extraneous noise. ... In 2007, in concert in Perugia during the Umbria Jazz Festival, angered by photographers Jarrett implored the audience: "I do not speak Italian, so someone who speaks English can tell all these assholes with cameras to turn them fucking off right now. Right now! No more photographs, including that red light right there. If we see any more lights, I reserve the right (and I think the privilege is yours to hear us), but I reserve the right and Jack and Gary reserve the right to stop playing and leave the goddamn city!" This caused the organizers of the Festival to declare that they will never invite him again. (via wikipedia)