Two other well known Romanian spectralists are Iancu Dumitrescu and Ana-Maria Avram, who are married to each other. Dumitrescu and Avram are currently touring a few major European capitals – London, Paris, Berlin and Bucharest – with Spectrum XXI, an international festival of spectral and proto-spectral music of which they are the founders. Performances of works by the Romanian spectral school are few and far between. For this festival the Hyperion International ensemble, founded by Dumitrescu in 1976, has accompanied Dumitrescu and Avram, both of whom conduct their own works. The last concert of the London series was last Sunday evening at the LSO’s Jerwood Hall, a programme featuring works by Dumitrescu and Avram.