Bulgarian National Choir, Sofia Philharmonic Orchestra, Georgi Robev, Rouslan Raychev – Prince Igor Prologue - Introduction
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Bulgarian National Choir, Sofia Philharmonic Orchestra, Georgi Robev, Rouslan Raychev – The Queen of Spades, Op. 68, TH 10 Choir of the Ball
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Bulgarian National Choir, Sofia Philharmonic Orchestra, Georgi Robev, Rouslan Raychev – The Queen of Spades, Op. 68, TH 10 Choirs of Gamblers
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