رده:گروه‌های موسیقی بر پایه سبک

I don't have sufficient context provided to write an accurate overview. You've indicated this is a Wikimedia category, but you haven't provided the actual category description, contents, or other details that would let me accurately explain what "Category:Musical groups by genre" contains and why it matters to readers. Could you provide more information about the category's scope and purpose?

AI-generated from the Wikipedia summary — may contain errors.