I go and listen to the Diotima String Quartet whenever I can. Their most recent concert that I heard was at Opéra Bastille where they played Beethoven's Op.132 and Nono's
Fragmente-Stille, an Diotima. The quartet performs a lot contemporary music.
The violist of the quartet, Franck Chevalier, performed my
Viola Concerto in 2001 with the Chamber Orchestra of the NZSO, and in 2002 the quartet participated in a recording (for Radio France) of my
Tango Suite for contralto, string quartet & double bass. This was with Eiichi Chijiiwa and Nicolas Miribel as violinists.
The current members of the group are Naaman Sluchin & Yu-Peng Zhao (violins) Franck Chevalier (viola), & Pierre Morlet (cello).