Okay people, bare with me a moment. I had told a friend I would love to get an upright acoustic bass. I then was quickly pointed out by nearby musician that was not the correct term that what I wanted was a double bass. Now, I play electric and have for years so to say the least I was a bit embarrassed and didn't say anything after that other then "thanks". Would someone be kind enough to tell me what the difference is between an acoustic bass, double bass, upright, and cello? I hate to admit it but, I thought they were all one in the same other then being a 3/4 bass and a full size. Thanks to all for your patients.