Hi @Adil2
Personally I avoid using NOVAT as it means the transaction will not show on your VAT Return at all (& I prefer to have all income/expense transactions on there as a way to check/reconcile accounts).
I'm not quite sure what you mean by a music course but I'm guessing it's a Service being received rather than a purchase of Goods.
I've always thought that VAT on Services are a bit of dog's dinner - in general, it depends on the Place of Supply (see https://www.gov.uk/guidance/vat-how-to-work-out-your-place-of-supply-of-services).
In your case (if I've understood correctly that it's a music lesson or instruction course) I would go with Z=0% or 20.0% RC SG. Both have the same effect - there is no VAT to pay - but these bring the expense on to the VAT return.
Hope this helps.
