What compositions and performances are not on disc that you would like to be on disc?

[Bryn]

Ha! I've sort of got the Nine Rivers cycle on CD - transferred straight from the H&N broadcast from c.2015

Speaking of Decca Headline - has Henze's excellent songcycle Voices ever been reissued on CD?

While the recording is available at very low cost as mentioned by fg, since Decca and DG are both Universal labels, why was it not included in the DG complete Henze recordings box? Perhaps it was a marketing decision and a complete Universal recordings box will appear next year (shades of the Hogwood Haydn symphonies saga?).