Illustrated Companion to the Latin Dictionary/Mesochorus

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

MESOCH'ORUS (μεσόχορος). The leader or director of a band of musicians, both vocal and instrumental; he stood in the centre of the band, to give the signals and mark the time. Plin. Ep. ii. 14. 7. Sidon. Ep. i. 2.