Keller on Furtwängler Part 1

Leopold Stokowski at 90 - Hans Keller tribute ('Music Magazine' 1972)

The Time of My Life: Hans Keller; BBC Radio 4 (1974)

1967: Are PINK FLOYD too LOUD? | The Look Of The Week | Classic BBC Music | BBC Archive

Hans Keller Online [1] -- Chamber Music, Mozart [1], Part 1 of 2

[Pink Floyd] Syd Barrett and Roger Waters interviewed by Hans Keller (1967) (SUB - ITA)

German Hans Keller 'INTERVIEWS' the original line of PINK FLOYD - with SYD BARRET\