Is this flute concerto a long-lost Mozart composition? (Probably not.)

Last week, my news feeds were full of stories about musical manuscripts and rediscovered compositions:

1. On November 27, A manuscript of Mahler’s second symphony auctioned at Sotheby’s set a record for the highest sale price of a musical manuscript.
2. At the same auction, a manuscript of a Beethoven piece failed to sell, and Sotheby’s blames a musicologist for voicing doubts that it’s in Beethoven’s handwriting. 
3. On December 2, Austria’s Tutti Mozart Orchestra premiered a long-lost flute concerto purported to be by Mozart.
4. Coincidentally, that same day saw the revival of Stravinsky’s “Funeral Song,” which was lost in the Russian Revolution and recovered in 2015.

Since this blog’s primary purpose is to debunk musical myths, I’m going to focus on event #3: Is this a lost concerto by Mozart? The answer, unfortunately, is: It’s VERY unlikely.