Definition of maestro di cappella in US English:

maestro di cappella

noun

Music
  • In Italy: the chief musician at a chapel; a choirmaster.

Origin

Early 18th century; earliest use found in Short Explication of Foreign Words in Musick Books. From Italian maestro di cappella, lit. ‘master of the chapel’ from maestro + di of + cappella; compare kapellmeister.

Pronunciation

maestro di cappella

/ˈmʌɪstrəʊ diː kəˈpɛlə/