Their website says from September 6 to October 26. As for music, they usually have someone playing authentic music. Usually just one or two guys though, not a full band.
Oktoberfest at Schnitzel Platz is currently underway at the restaurant. The event by Schnitzel Platz in Camera Park in Glendale Heights begins on September 12, with awesome authentic music!
It will start beginning of October and yes it will have authentic music.
Thanks! Your answer is awaiting moderation.