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David had been doing "lecture-demonstrations" or "lecture-dems" for a long time by 1977; it had proven effective in the past, as with Ballet for All, so he continued with the Alberta Ballet.
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David had been doing "lecture-demonstrations" or "lecture-dems" for a long time by 1977; it had proven effective in the past, as with Ballet for All, so he continued with the Alberta Ballet.
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