context: When Birmelin retired in 1950, Buesgen was given Birmelin's post - a position he would hold for the remainder of his life.
source: Buesgen also actively worked as a piano, organ and voice teacher in Allentown, and served as organist and choirmaster for a number of local churches.
reference_original: Buesgen ha anche lavorato come professore di piano, organo e voce ad Allentown, e ha lavorato come organista e maestro di coro per diverse chiese.
reference_flipped: Buesgen ha anche lavorato come professoressa di piano, organo e voce ad Allentown, e ha lavorato come organista e maestra di coro per diverse chiese.