Just out on Musicales Actes Sud label ( available from Qobuz) an early 30 minute cantata " Velleda" by Paul Dukas.
Coupled with the Polyeucte Overture and , of course, .....
Audio samples here:
http://www.amazon.co.uk/Paul-Dukas-LApprenti-sorcier-Polyeucte/dp/B00G6U1KGG/ref=dm_cd_album_lnk_alt (http://www.amazon.co.uk/Paul-Dukas-LApprenti-sorcier-Polyeucte/dp/B00G6U1KGG/ref=dm_cd_album_lnk_alt)