I've decided to get back into acquiring classical music on vinyl and CD's. I want those recordings to be technically superior. I don't consider recordings made before the 1970's to meet my criterion. (I own enough pre '70s classic vinyl to know from whence I speak). Sellers are fond of listing "digitally remastered" as a panacea for recordings made in the '50s and '60s. Sometimes sellers will reveal the original recording dates for some of their offerings, but not all. Other sellers don't even bother. Unfortunately the golden age of classical music performances on vinyl was the period .from the late '50s to the late '60s. That's why it's tempting to re-release, and remaster from that era. Nevertheless, while much fewer, in number, recordings of classical performances continue to this day. Is there a website that lists the dates of original performances/recoridings so I can apply a date range filter?