David Dubal describes him as an "unusual and powerful pianist" who made "grandly conceived" recordings of the late Beethoven sonatas and captured "the very essence of the Faustian Liszt".
Dubal, David (2003), The Essential Canon of Classical Music, North Point Press, ISBN 0-86547-664-0.
David Dubal and Olek Krupa hosted the event honoring Sporek's 20 years of artistic work in the United States.
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