I wonder how all three beans would go together?
I have this idea that African beans would match best - or blend best - with Ethiopian beans, a line of thought occasioned by the fact that the best wines to accompany a given cheese in France tend to be wines from the region the cheese has come from.
Any commercial blends (by which I mean the commercial, experimental blends some of the roasters have put together) which have included Ethiopian beans have the ratio wrong, to my mind.
(A conclusion arrived at after much tasting of what they had to offer. Now, I applaud the idea of what they are trying to do, but don't always think that the execution is entirely successful).
Ethiopian beans tend to be lightly roasted: Therefore, blends where the Ethiopian beans comprise 20-50% of the total don't really work all that well, because the subtlety - and lightness - of the Ethiopian, not to mention what I like about it (those clean, clear, bright and smooth notes) gets overpowered when matched with say, Brazilian, or other fairly robust coffees.
The trick may be to find some way of giving the depth of flavour, and heft, and strength of some of the other coffees - which is what they bring to this blend - to show, while also allowing the specific flavours of the Ethiopian coffee to come through, and that may mean tweaking the percentages and ratios.
I have come to suspect that it is not just the region (say, South America, or Central America, versus Africa), or the varietal, but the ratios used, as well, that may count.
My own experiments that worked best had a large percentage of Ethiopian, coffee, or played with two types of Ethiopian coffee.
What are your thoughts on Kenyan coffee, and Rwandan coffee, and how they might match with Ethiopian coffee?
My own thoughts are on the lines of 50% Ethiopian coffee, and perhaps 25% each of the others: I will most certainly try something closer to 60% Ethiopian, and perhaps 20% of each of the others.
Then, again, there were three different coffees form Kenya, and I was assured that they are quite different from each other. I suspect that I shall be heading back there tomorrow for further investigations...