Good for you that you stuck up for your daughter. My kids love Elvis and motown because i play them a lot. Its never held them back or been a topic or issue. Crazy school.
I had something similar recently. My son who is 16 and a high achiever e.g he got 98% in maths A level at the age of 15. He is doing 3 maths A levels and Geography A level and is one of the top students in the school. He always gets the score 4 for behaviour which is the outstanding mark.
Anyway they have a homework diary that all parents are supposed to sign weekly. However all kids do not get their parents to sign and sign it themselves. What Adil did was sign it when the teacher was watching. He was accused of forging out signature. He said he had not forged the teachers signature but has always done his own signature. They immediately gave him detention as he said that their procedures were unecessary. At 16 he can join the army and doe for his country but at 16 he has to get mummy or daddy to sign a homework. He always does his homework and has refused going on holiday 3 times so far because of exams. I went to a holiday with my girls for a week in the countryside last week . He stayed behind and spent most of hos time in the library. Anyway they rang my husband to say he had been given detention and why. My husband could not stop laughing. Then they tried to get us to agree tosend him to a six week behaviour management class. We said get stuffed. What a joke!!!!