I listened to Tony's post and thought this was a fun idea. I thought the dominant #11 in the Take The A Train thing was a dead give away though! So I thought it may be really fun to try an obscure standard with less obvious chord motion. As personal punishment for doing this, I've decided to do this in Db in order to make it harder on myself, oh why god!
Ok, a few hints: This tune is typically played in Eb. The 2nd part of the tune after the first 8 measures should give it away if you know the tune. Even though many standards sound "the same" harmonically, there's usually at least a couple of measures that make it unique and not just a bunch of ii-V-I progressions. If you're not familiar with this song, then post what the changes are. Have fun!