Alban Berg documentary

Directed by Barrie Gavin for the BBC. with Helene Berg, Pierre Boulez, Willi Reich, Alfred Kalmus, Jascha Horenstein, Jean-Rodolphe Kars, BBC Symphony Orchestra, Delme String Quartet. First broadcast as ’Music on 2’, BBC 2, Dec. 13, 1972. Note: Last 8 minutes missing...