(KMOV) -- The school board has accepted the resignation of band director, Matthew Lang.
Lang, 36, is accused of having an affair with a 16-year-old female student
He has been charged with two felony counts of Sexual Assault and two counts of Aggravated Criminal Sexual Abuse.
Police say Lang had sex with the student more than once during school hours. Some of the encounters occured at the school and others happened at locations away from the school.
Lang is behind bars on a $250,000 .