1.
while a musical instrument is being played :
They performed to the accompaniment of guitars.
2.
while sth else is happening :
She made her speech to the accompaniment of loud laughter.
1.
while a musical instrument is being played :
They performed to the accompaniment of guitars.
2.
while sth else is happening :
She made her speech to the accompaniment of loud laughter.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005