tracks a1 to a3 clarinet Jack Brymer
composed by Béla Bartók
cover Robert Planet
tracks b1 to b4 directed by Richard Austin
liner notes Guy Perpere
tracks b1 to b4 percussion GIlbert Webster
tracks b1 to b4 percussion Jack Lees
tracks b1 to b4 piano Iris Loveridge
piano Wilfrid Parry
tracks a1 to a3 violin Frederick Grinke
Une Production Argo, Londres

This is the French issue of UK Argo release Sonata For Two Pianos And Percussion / Contrasts For Piano, Violin And Clarinet but with the sides reversed.
Rights Society: B.I.E.M.
Matrix / Runout: R.G. 89 I A, R.G. 89 I B