To remember is a curse. To forget is a blessing. I understand. You know what I do in situations like that? I listen to other renditions to make the familiar unpredictable.It's funny, I have a hard time sometimes enjoying an album because I know where all the edits are. I hate revealing where things are because I don't want people to suffer the same problem.
If enough time passes I can usually forget but some are printed on my brain.
Take this for example. Star Trek: Starfleet Academy for the Super Nintendo has 16-bit renditions of James Horner's work! I'll listen to this from time to time to refresh my appreciation for the original.