After going through most of the rest I settled on Elisa as a good amalgam if winamp and itunes UX. I didn't realise it is obscure judging by no mention of it here.
I would not be so sure with the 100%. France had a mutual defence treaty with Czechoslovakia in 1938. They not only chose not to honor it but U turned all the way and explicitly let Hitler occupy it.
Would you trust them in crunch time mere 90 years later?
Just to note that this site hasn't been updated for a while.
Much better, more modern and with automated upload analysis site would be [1] although it is designed for finding the highest fidelity resampler rather than AB comparisons.
https://mapa.zsr.sk/index.aspx
And Polish one, still a gen or two behind just like their rail network. It needs to be said they are investing heavily to bring it up to scratch.
https://portalpasazera.pl/MapaPociagow