 It is frequently conducted by Diego Masson, who conducted the performances of many of Xenakis's works, as well as other guest conductors including Huub Kerstens.Its concertmaster is Mifune Tsuji.The group was founded in 1980, at the initiative of the foundation Nieuwe MUZIEK Zeeland of Middelburg and the pianist Geoffrey Douglas Madge, with the approval of the composer Iannis Xenakis.