I've only just seen this post, and while I can't help with the recordings in researching Belaieff we found 12 different spellings but adhere to the one which he signed himself when he wrote in English. I cannot help you with regards to recordings, but the Amani Trio is being played in Sandhurst, Kent on October 12th. 2014 @ 3pm. at a recital in memory of the musicologist, Richard Beattie Davis, who wrote on all of these sadly termed `unknowns`.
You can find more information on Belaieff at www.beautyofbelaieff.com
You can find more information on Belaieff at www.beautyofbelaieff.com