You can hear them at Ultimate Music.
According to them, there's only a handful of songs left that haven't surfaced... yet.
Madonna tells Billboard the premature debut of her album forced her and her team to re-think their promotion strategy:
Well, it's thrown us all into overdrive. We're having to think outside the box. Think on our feet. I didn't plan to put my record out this way. I wanted to… plan everything in advance. Release the single, shoot a video, start talking about my record. And you know, prepare for the release of the entire album and have everything set up just so. I mean, that's the kind of person I am. I think that's the best way to do it. But we sort of were left with no choice.
Originally I wanted to put everything out together. I have an overabundance of songs, and actually, the reason I wanted to call the record Rebel Heart was because I felt like it explored two very distinct sides of my personality. The rebellious, renegade side of me, and the romantic side of me. In my mind, it was almost like I wanted to do a two-record set. So you get this chunk of songs, and that chunk of songs. That was my original goal. But then all the demos leaked and I can't really go down that road anymore, so I put out (the six songs) first and then, I think a few more songs are going to come out during the time of the Grammys. Then the rest of the album will just come out together (in March), and they'll just get my rebellious and romantic side all mixed in together.
Madonna must be devastated. No words.