“A Tone Testament” is a recent post by Phil Legard, which links to the Leila Waddell memorial site archived at the library [HT Warren Ellis]. That post not only talks about ΘΕΛΗΜΑ A Tone Testament by Leila Waddell from Equinox I 8 but also offers a rendition of the score which you can hear yourself, and a very nicely typeset version is also linked there.