Hello Ana,

I don't know whether you have come across this place (an actual shop in Covent Garden, London and also an online shop): Dress Circle

They have any number of Dietrich recordings, plus sheet music.

I agree with M.Ted's comment above. Rather than worrying about backing tracks, your performance could have far more of an "atmospheric" impact with a single live accordion accompaniment. I've seen this done to very good effect recently in two Brecht plays (yes, I know, Brecht is rather different !), but you can't beat live music.

If you live within striking distance of London, you might like to know about this play, on now and up to 27th April at the New End Theatre, Hampstead:
"Lunch with Marlene - A Play and Cabaret" with Kate O'Mara and Frank Barrie as Marlene Dietrich and Noel Coward.

Hals- und Beinbruch !

- jeanie