Otche nash tchaikovsky biography
Slavic hymns
Rachmaninov's Otche Nash (Our Father) comes from his Liturgy of St John Chrysostom.
Tchaikovsky piano solo pieces
There is a short biography on Tschaikowsky from page 4 to 8, originally written in German.
Tchaikovsky album for the young wikipedia
Tchaikovsky, Peter Otche nash The Lord’s Prayer.
Tchaikovsky operas
Title: Oche nash Composer: Pyotr Ilyich Tchaikovsky.