Handel and Haydn Society (Chamber Ensemble)
Artist's website: https://handelandhaydn.org/
The Handel and Haydn Society is an American chorus and period instrument orchestra based in Boston, Massachusetts. Known colloquially as 'H+H', the organization has been in continual performance since its founding in 1815, the longest-serving such performing arts organization in the United States.
Read more at https://en.wikipedia.org/wiki/Handel_and_Haydn_Society