From this article:

No fairy tales or singing for pupils
The head and his deputy at a Muslim free school were allegedly bullied out of their posts by religious hardliners

Worse than the not allowing singing (except faith songs), or stringed instruments (why the hell are stringed instruments un-Islamic?), or the headscarves for non-Muslim teachers, is this:

The source added that girls always had to give way to the boys, even on social occasions: “On a school trip to Drayton Manor Park zoo girls queued up for all the rides, only to have to cede their places to boys and male teachers when they got to the front of the queue.”

That makes me so angry.