Whenever I hear these older pieces of music, I always think that this is possibly the closest we can get to the true history of the past. Anything written by historians can easily have been colored by the writers or whoever hired them to write. Painters made people look better, lest they face unpleasant results. But the notes are there. Exactly as they were when written. Yes, the instruments were often different and the interpretations vary, but it’s still a true look at the past. At least as close as we can reliably get. 

@chayro Then don’t try to look into ancient music ensembles... you’ll learn far too much about how music changes over time, including how instruments themselves have changed.

Also, look into the history, especially the research over the past 20 years on the Well Tempered Clavier.

Great to find another admirer of Sergei Schepkin.  I also have all of his Bach recordings.  Other piano recordings in my collection are Perahia, Schiff, Dinnerstein, and Andrezewsi.  I recently picked a Claudio Arrau from the early forties but haven’t got around to listening to it.  On harpsichord Gustav Leonhardt, and also the Sitkovitsky Trio and a brass quintet that has gone missing from the CD shelves