Jack O'Brien

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The classical violinist Jack O'Brien should not be confused with other performers with the same name, especially "Philadelphia" Jack O'Brien, a prizefighter who also happened to play violin. The less…
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The classical violinist Jack O'Brien should not be confused with other performers with the same name, especially "Philadelphia" Jack O'Brien, a prizefighter who also happened to play violin. The less punchier O'Brien's professional affiliations include the Griller Quartet -- a string quartet led by violinist Sidney Griller and not a quadrumvirate of cookout fiends.