This disc from Nubian pop songstress Alsarah & the Nubatones is a revelation in terms of East African music, the part of the continent which produces less aggressive, more sultry and sensuous music. The Soukura EP is filled with more time changes than a noodly prog rock album, and this makes sense, since Sudanese music is full of gorgeous instrumentation and time signatures.  From the release’s Bandcamp site: “The original song “Soukura” is a small taste of her upcoming album Silt (out on 3/11) and gets a signature deep and entrancing Ancestral Soul remix by African house legend Boddhi Satva…