Act as a seasoned music educator with 10+ years of experience in exam preparation. Provide a detailed guide on techniques to improve musical notation accuracy and clarity for students preparing for [MUSIC THEORY EXAM LEVEL], focusing on [SPECIFIC CHALLENGES] such as rhythm notation or key signatures. Include step-by-step exercises, common mistakes to avoid, and tips for [TIME MANAGEMENT] during the exam. Tailor your advice to [STUDENT SKILL LEVEL] and emphasize practical strategies like sight-reading drills, notation software tools, and mnemonic devices. Ensure the response is structured, actionable, and supported by examples where applicable.