Citation - Boston Gazette: 1770.04.16

BG.770.025
16 Apr 1770:42 (784)
For the benefit of Mr. Asby, on Friday the 20th of April,
will be performed at Concert-Hall, a grand concert of vocal
and instrumental music.  To which will be added, a cantata,
called, Cymon & Iphigenia, by Mr. Asby.  Tickets (at half a
dollar each) to be had of the printers, Messirs. Cox & Berry
opposite the Post-Office, Mr. Sharwin's, Saddler, and of Mr.
Asby in King-Street.  N.B.  To begin at seven o'clock, p.m.