I spent 10 years of my life teaching special education in the public schools. I swore I would never give an apple themed gift to any of my children's teachers. Ever.
Is it breaking that pledge to give any sort of themed gift?
If I just happened to have some fabric on hand that had a music theme and I thought it was pretty fabric and I needed a gift for Ellie's piano teacher, that would be okay, wouldn't it?
If I used two buttons from my stash to spruce it up and one had some embroidery to turn it into a musical note, that wouldn't be making matters worse, would it? And then if I did parallel rows of quilting to make it look like a musical staff, she might not even notice that...
If she did, I hope the gift card tucked inside the cup made up for it.