I had the great pleasure to listen to her personally in 1988 at Münster (D) where she gave a beneficial-concert for a polish-german students-exchange-organisation.
She played Chopin, Schönberg and Mozart (Adagio h-moll KV 540) on the Bösendorfer Grand.
I will never forget her sitting at the Bösendorfer shaken slightly probably by Parkinson but when she touched the keys or some pedal no shaking was visible any longer. I guess regretfully this event remained undocumented.
Some posts regarding Edith Picht-Axenfeld on youtube:
1. Die Einsamkeit -
2. Glück -
3. Das Frauenzimmer -
4. Seltenes Glück -
5. Die vergessene Phillis -
6. Falschheit -
7. Lob des Weins -
Dietrich Fischer-Dieskau, Bariton -
Edith Picht-Axenfeld, Cembalo -
Irmgard Poppen, Violoncello -
Händel:Sonata in E Minor "Hallenser No.2"