Probably did, the Leslie A200 is one of the ones I had in mind if I could find a good recording.
"Why are all the related videos about Minecraft"
Possibly because of my username. I originally used "sniper297" which was my Navy nickname, first time I logged into a network was NALCOMIS in 1980 and been using that ever since. But YouTube and google yahoo whoever insisted on creating a new google account to keep the YouTube account, and then wouldn't let me log back into the original sniper297 account. Since there are no humans involved in their tech support I just created a new YouTube account using RatKiller, which was my street name when I was a kid. Trying to remember usernames and passwords at my age is a royal pain sometimes.