The stuff I do for you guys. I've just spent hours parsing through four hundred MP3s of Russian crap, half sub-eurovision pop, half old-fashioned and/or US copyist* hip-hop, all encoded at too low a bitrate (even though one of the CDs explicitly said 192-320 kbps; it lied). I've done my best to carve out what I think is the most interesting material for your enjoyment, and it hardly presents a particularly unified genre of any kind - Russia is still at a very international stage of its musical development.
So what about Latvian music? Well, fellow couchsurferProkur set me onto some hip-hop, but I have to say it's kinda so-so. So I'm going with the Russian stuff for now, though you're welcome to convince me otherwise. I've redownloaded all the tracks at good bitrates.
This is the only track that really caught my ear off the pop CD. It's got a sort of updated "I Feel Love"-ish vibe, not just in the arpeggiator and synth sweeps but in the aloof minor-key melody, which also feels utterly Russian. Good stuff!