A late night collaboration will take place at Bottom Lounge in Chicago on December 29th. The roster of players who will perform as Xoanon’s Heartbreak will include Jake Cinninger and Joel Cummins from Umphrey’s McGee, Alan Hertz and Eric Levy from Garaj Mahal (who will be in town to open for String Cheese Incident the next evening) along with Mike ‘Mad Dog’ Mavridoglou who recently became the fourth member of the Jazz Mandolin Project, Jon Paul (Fareed Haque Group) and Wes Chihosz. Music will begin following the Umphrey’s McGee gig at the Vic earlier in the evening (and one would imagine after the String Cheese Incident show at the Auditorium Theatre as well).