Claim: Blatnaya pesnya (a.k.a. Blatnyak) is a genre of Russian song characterized by depictions of a criminal subculture that generally lack choruses, instead consisting of long narratives composed strictly of verses but have simple melodies and root position tonic.
Evidence: Blatnaya pesnya (Russian: Блатная песня, IPA: [blɐtˈnajə ˈpʲesʲnʲə, "criminals' song") or Blatnyak (Russian: Блатняк, IPA: [blɐtʲˈnʲak) is a genre of Russian song characterized by depictions of criminal subculture and the urban underworld which are often romanticized and have criminally-perverted humor in nature. In terms of structure, blatnaya pesnya generally lack choruses, instead consisting of long narratives composed strictly of verses. Blatnaya pesnya have simple melodies, and root position tonic, dominant, and subdominant chords largely constitute the harmonic accompaniment.