The Entry Chorus from Nabucco by Giuseppe Verdi is sung by a chamber choir. This is true.
It should be noted that a chamber choir is a small or medium-sized choir of roughly 8 to 40 singers that are occasionally called 'chamber singers and are typically singing classical or religious music in a concert setting
A chamber choir is made up of.20 – 36 singers ans.if it's any smaller it becomes a small choir or an ensemble.
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