I just discovered this bootleg collection of unreleased tracks from Madge's Rebel Heart sessions. I don't understand the online hate regarding these songs. Granted, some of them aren't her best work, but it can be argued that entire albums she's released aren't her best work. A few of the songs are actually quite good and for the life of me I can't understand why they weren't released with Rebel Heart.
If you're interested, you can hear the album here.