The now-legendary Antonovka Records have done astounding work documenting music from Russia’s myriad of ethnic communities.  This one is from the so-called “Polish” Old Believers in the Altai region.  From the label’s Bandcamp site: “The ancestors of the Altai “Polish” Old Believers were peasants of the Vetka-Starodub territory of the priestly Old Believers, who fled from the persecution of the authorities to the Polish–Lithuanian Commonwealth and to the bordering area of the Starodub regiment as part of the Russia. Upon her accession to the throne, Catherine II invited the Old Believers to return to Russia with a manifesto. However, they…