I play fretted electric bass. I have no experience with fretless and I'm not interested in it right now. I also like acoustic music, but acoustic bass "guitars" don't produce a lot of volume. So I was wondering if there is such a thing as a fretted acoustic double bass? This will be for my own compositions mostly. I'm not going to use it for classical. Think MTV unplugged rock music. I was watching the documentary Mr. Blue Sky, with Jeff Lynne. In it there was a fretted acoustic upright in the background. I've been searching the internet for info on it and I can't find any. It doesn't have to be that one though.