Since I received word from Loren that the issue with Spoiler tags was sorted due to a smaller oversight in the website's CSS code (which hopefully might be mentioned in the Tuesday Topics thread for this week!), I went ahead and added a spoiler tag. Mainly because I originally intended to add it when re-formatting your original post and it seems like that's something you initially wanted? If you'd rather not have it, I understand and the spoiler tag can easily be removed!
I also made one other small edit in that banjo's listing incorrectly stated that the track is used in Ketchup Logic. The last mission to make use of that track is actually L4M2 (Redneck Roundup). I'm not sure if it was an issue with my original custom soundtrack tagging or not, but I figured for accuracy sake I'd go ahead and edit it.
Many thanks for taking the time to compile this! Like the regional list Addy made a while back, I feel this will be very useful for those who want a quick reference.
Keep up the spoiler list and thanks for the correction of the *banjo* part.