The oft-cited Stradivari violins and cellos are not the only string instruments that the famous Stradivari family crafted. They made violas as well. In fact, there are currently 13 known Stradivarius violas still in existence to this day. These instruments are so rare that one even was on market in 2014 for $45 million. Unfortunately, that viola, named MacDonald, didn’t receive any bids. As Bloomberg keenly points out, MacDonald was the butt of just another viola joke:

Q: What do you call the world’s most valuable musical instrument if nobody wants it? A: A viola In a failure-to-sell that promises to revive the catty, music-nerd viola joke genre, auctioneers Sotheby’s and Ingles & Hayday said that at the close of sealed bidding for the 1719 “Macdonald” viola, nobody had offered the minimum $45 million price. It would have been a world record for an instrument. Courtesy of Bloomberg