Today : Michael Tippett 's A midsummer marriage.

A couple of years ago I bought this set for a few euros on a flea market... put aside and forgot it. But I knew the Ritual dances -which I dearly love - and took the plunge today. I followed with the libretto and enjoyed this extatic "riot of of symbols drawn from Greek, Celtic, Christian and Hindu mythologies" (David Cairns, in the booklet).
The 1971 performance is excellent and the youthful voices of Remedios, Carlyle, Herincx, Harwood, Burrowes, Watts, Dean and Bainbridge ring out in splendor.
Tippett's orchestra is another "wondrous machine", shimmering, chirping, broadly caroling or violently stuttering.
The Midsummer marriage needs to be seen in a large opera house, with all the latest tricks of digital scenery. Superb!