Inverted Space Ensemble concludes its 2015-2016 season with the music of Georges Aperghis and Iannis Xenakis. Featured on the program is Xenakis’ XAS for saxophone quartet and Aperghis’ Jeu à quatre for alto saxophone quartet. Dikhthas for violin and piano and Morsima-Amorsima for violin, cello, double bass and piano, both by Xenakis, are also included.