About Gulda's, the CD is german and the booklet in german,but I think it says 1980.
Some other modern pieces (look for Slava!)
Lev KNIPPER c.c.
VAINBERG c.c.
Boris TISCHENKO c.c.
KHTCHATURIAN Concerto-Rhapsody
Nina KOTOVA c.c.
Vladimir VLASOV c.c.
Hans PFITZNER 3 c.c.
BRITTEN symphony for c.and o.