I'm launching today a Blind comparison on Beethoven's Große Fuge. I've selected 20 versions (all by string quartets, no orchestral arrangements). I already counted 15 participants from this french forum, and you're welcome if you want to join.
There are 5 groups of 4 versions each (randomly dispatched), all in the same excerpt, that you can listen in the 1st round. Everyone ranks the versions from his favourite (1) to his least favourite (4). I accept ex aequos.
At the end of this round (in 2 weeks) I'll mix all votes (with the Condorcet method), and only the best of each group will progress to the 2nd and final stage Each participant will listen to one group but those who want can listen another group, or even all of them if you have the time.
Just say right below that you want to participate, I'll count you in and send you your group.