The one on the left is the deluxe version, which apparently, is the better version. The standard is the one that has been posted after the fold. The photos were shot by Steven Klein, who also shot the promos for her upcoming scent Eau de Gaga.
The album's lead single has since topped the Billboard Jazz Digital Songs chart and the album is slated to hit stores on September 23rd. A concert special performed by the duo in support of the project, airs October 24th on PBS.