Does anyone know how many different BGM's have played at Big Thunder Mountain Railroad in WDW? The current BGM has 14 tracks and runs around 20 minutes. I have seen one track that runs approximately 55 minutes posted on the newsgroups before, which obviously isn't the current BGM. But it also doesn't match up to a short live recording that I heard from the early 1980's, which matches part of the current BGM. However, this recording has a harmonica version of "Skip to My Lou" which isn't something that is included in the current loop, or the 55 minute loop. In fact, I am not sure if this song played in the queue, or, rather, was exterior music.