Tchaikovsky reused in Oprichnik (the Guardsman) much of the music from the destroyed Voyevoda. The opera, set among Ivan the Terribles guardsmen, is notable for sounding more 'Russian', more like the St. Petersburg based Mighty Handful of Mussorgsky, Borodin, Rimsky-Korsakov etc., than his later westernized operas. The only chunk of the opera well known today is the aria Pachudilis.. as sung by Galina Gorchakova on her Philips recital disk. Respectable performance from Vassily Savenko (known from three discs of song on Hyperion) and conductor Rozhdestvensky, but the sound you'd expect from a live performance and unforgivably no Russian libretto, only English translation. Unlikely that Chandos or Philips will get round to this opera again so the prospect of a studio set with a Russian libretto appearing is minimal.