The site substitutes Cyrillic homoglyphs for ordinary Latin letters, presumably to inhibit copying. For example the B in 'By' is actually the Cyrillic Capital Letter Ve (unicode 1042). Presumably the few readable Latin letters had no suitable subsitutes. Remarkable - I've never seen it before on an ordinary website. But I wonder why they bothered?
I had a couple of LPs - 'Club Folk' volumes 1 and 2'- bought secondhand, with songs by her and other singers from the '60s. I must have liked her songs because I remember her name, but I never digitised it.