For calculating purpose, the fundamental is chosen from standard pitch, A4=440 Hz. In practice, it can use any pitches. The unison and octaves of fundamental have zero deviation because it's assumed to be perfectly match to Equal-Tempered counterpart.
Does your choir's public image truly reflect what you want your choir to be?
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Choirs need to promote themselves in order to recruit singers, get people
to come to concerts, buy CDs and so on.
But does your public face truly reflec...
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