@Rich T One thing I wanted to ask you about the 1970s Toad recording is if anything conflicts with your own memories of how the ride sounded. Something I immediately noticed about the recording upon hearing it is the presence of certain audio reels which were used for the 1971 WDW version of Toad (namely the queue/Toad Hall song, the loop of chirping crickets and owl hoots, the oncoming train and collision, and the cackling devils), and some of us have been speculating whether or not these predate the WDW ride. I've hypothesized that if the Toad recording is from the
early seventies like the Alice and Snow White recordings, then those reels almost definitely predate the Magic Kingdom, but you're basically the only one here who can give an educated answer.
Your description of the ride's audio from September is definitely accurate, by the way. I can make out the motorcycle siren no less than seven times throughout the recording, and you can actually hear the first cop whistle through the front wall at five seconds in. The sole thing in the recoding that has me confused is the low-pitched "rumbling" sound heard along the village straightaway at 0:46, and then again at 0:50. If you have any recollection as to what this sound was supposed to be, I love to hear it.