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	Hector Valdivia (conductor) Amy Beach - `Bal masque` for Piano (or Orchestra), op. 22 Hector Valdivia (conductor) , Moravian Philharmonic Orchestra Recorded: November 28, 2000, Olomouc, Czech Republic. (4) Amy Beach - Variations on Balkan Themes for Orchestra (1906); Two Pianos (1937), op. 60 Hector Valdivia (conductor) , Moravian Philharmonic Orchestra Recorded: November 28, 2000, Olomouc, Czech Republic. (1)