I brewed a Flanders Red with the Melange blend back in 2015 (link to my blog post on the batch). Here are some tasting notes after 2 years of aging:
Bold earthy aroma mixed with dark fruit
Dark red and clear - very nice looking beer
No sourness has developed. There is a bit of interesting fruitiness and some bready malt. Also get a hint of alcohol. Finish has a bit of funk
Mild flavor with a fair bit of complexity. I think this one is outshined by the Roeselare blend (which I’ve used quite a few times) but it brings some different flavors
I pitched a second beer (link) on that yeast cake after primary with a blend of Belgian Yeast and Lacto Brevis and got some different results. Here are my notes after a year and a half of aging that:
Bright fruity aroma mixed with earthy leather from the Brett. Very rich
Orangish red and a bit cloudy
Light sourness. Has a nice fruity character. Also a smooth bit of bready malt in the finish.
Pretty good set of flavors that pop nicely
I think Melange makes for an interesting component in a blend but don’t count on it to make an interesting Flanders Red on its own