Your interest for Lipatti’s music and the research you’ve done so far is most valuable and enormously appreciated! I believe you are right and that Beethoven Waldstein Sonata interpretation of Lippati’s really exists somewhere recorded and I hope you’ll find it! Good Luck! and God bless you!
ThePianoFiles
A most belated thank you for your response – sincere apologies for not having seen your comment until now!! Still searching for the Waldstein and not giving up hope…