Hey, I'm looking for the highest quality recordings from the following Artists:

Subjectively of course-If your talking LP's, always a sure bet to go with the period press.

Finding clean copies can be challenging.

Perhaps you're already checking discogs?

Billie Holiday | Discography | Discogs

Chet Baker | Discography | Discogs

Eva's recordings appear to be only on CD

Eva Cassidy | Discography | Discogs

Looking for vinyl for sure!

All three have vinyl  recordings on amazon.

Chet Bakers - Chet Baker Sings is the one I have my eye on.  There are a few different recordings. Have this on cd.

Not sure about Billie or Eva. 

TIA

Also, what's a period pass? 

Billie has a great cd titled Love Songs which I have on cd.  Bunch of vinyl on amazon. Tough to choose.

Same with Eva.

Period press that is...