bandleader
noun [ C ] old-fashioned uk/ˈbændˌliː.dər/ us/ˈbændˌliː.dɚ/
（尤指爵士乐的）乐队指挥
a person who leads a large group of musicians while they play, and who often plays an instrument at the same time
Glenn Miller was one of the most famous bandleaders of the 1930s. 格伦·米勒是20世纪30年代最著名的乐队指挥之一。