On the face of it, it seems like a good suggestion.
However we haven't had a really meaty and successful comparison since amw's Schubert Quintet July-December 2014.
Since then various midi- or mini- blinds have been somewhat or less successful, the Bach Violin S&P for example was painful starting in November 2015 and not finishing untiul January 2017 despite only surveying extracts from the music - but a fairly definite conclusion was reached although the number of listeners was too small really.
A lightning mini-round of Chopin (amw again) went very well in Feb 2017, but subsequent to that my two Sibelius and Shostakovich mini-blinds were barely credible due to the small number of listeners, and my Mendelssohn and Scarlatti mini-blinds fared worse, just inconclusive.
It's difficult to conclude what format would best catch the imagination.
Also, I have found that hosting the anonymised files has become increasingly difficult, with many cloud solutions identifying and tagging the music. Even a 2-minute 'bleeding chunk' from the middle of a 10-minute movement say, with all tags and images completely removed, gets correctly identified and tagged and the cover pic replaced, on, for example, Google Drive. This forced me to providing zipped files, which of course is a big obstacle to getting a successful blind going with lots of participants.
I do have partially-prepared projects, awaiting their moment - Tchaikovsky 6, Mahler 7, Bach Orchestral Suite 1, Glass Piano Etude - all in mini-blind format.
