To arrange, present, or perform as a concert; to give public concert performances.
From 'concert' plus the American English verb-forming suffix '-ize,' which is used to mean 'to make into' or 'to engage in the activity of.' This is the American spelling of 'concertise.'
Musicians 'concertize' when they tour—it's the professional term for the circuit of performances that made classical music accessible beyond royal courts and cathedrals, transforming it into mass entertainment.
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