Mstislav Rostropovich - Sviatoslav Richter     Beethoven: Cello Sonata in F major, Op.5 No.1   31/8/64, Usher Hall, Edinburgh (BBC)   Beethoven: Cello Sonata in G minor, Op.5 No.2   31/8/64, Usher Hall, Edinburgh (BBC)   Beethoven: Cello Sonata in A major Op.69   31/8/64, Usher Hall, Edinburgh (BBC)   Beethoven: Cello Sonata in C major Op.102 No.1   31/8/64, Usher Hall, Edinburgh (BBC)   Beethoven: Cello Sonata in D major Op.102 No.2   31/8/64, Usher Hall, Edinburgh (BBC)           Bonus:       Richter plays Mendelssohn: Serious Variations   1966, Moscow (Ideale Audience)