Ok, kinda bug update to the post, finally the recovery is now made from source and this is the cwm for flashing CM 10.1 for the Samsung Galaxy Music
I'm not responsible if your phone get bricked for trying to flash this recovery.
Koushik Dutta: For making this awesome recovery
Dhinesh77 for his device tree for corsica
-It only presents some graphical bugs when doing a backup
I don't have any idea how to fix that
-Initial Port from Galaxy Pocket Plus
-Tryed to fix background image while backing up using stock recovery pictures, however it still looks weird.
-Letters still look too big
-Removed unused pictures
-Made from source
-Letters are now smaller so they can fit the screen
Download link https://www.dropbox.com/s/pe1sx2yaqlq3m5n/recovery.img
Use your best method for flashing .img files or convert it into odin flashable file