The Hanover Band picked the noun "band" because historically that was the
word used to describe ensembles during the 17th-18th centuries. PO or
Orchestra was a later term. Another word used was "Academy". Hence "The
Academy of Ancient Music". Or "Concert". I think Kapelle is translated
roughly as "Band", so you will see references to the HofKapelle (Royal
Band).
Kim Patrick Clow