Joe Zawinul will perform a special concert in New York City on May 31 with internationally acclaimed guitarist and composer Wolfgang Muthspiel. The concert is part of the Mostly Jazz festival being presented by the Austrian Culture Forum in New York. The concert is free, but due to limited seating, a ticket must be obtained on the day of the show, on a first-come, first-serve basis. For more information, visit the Mostly Jazz web site.