June 1974
Jon Lord & Eberhard Schoener  
People involved
Tony Ashton (vcl); David Coverdale (vcl); Ray Fenwick (gtr); Glenn Hughes (bss/vcl); Jon Lord (kbr); Pete York (drm); the Orchestra of the Munich Chamber Opera conducted by Eberhard Schoener.
Lord & Schoener made a "Continuo On BACH" i.e. they finished an unfinished fugue by J. S. Bach. Together with a piece called "Window", it was performed and recorded live during the European presentation of Prix Jeunesse on 1 June 1974 at the Herkulessaal of the Munich Residenz.

Albums & singles
Windows [lp] : UK 1974 Purple TPSA 7513
Windows [lp] : Europe 19-- Harvest 062-95634
Windows [lp] : Germany 198- Line Records LILP 4.00117 J
Windows [cd] : Germany 198- Line Records LICD 9.00117 J
Windows [cd] : UK 1999 RPM Records/Purple Records PUR 322