Act as a certified strength and conditioning coach with 10+ years of experience in calisthenics. Provide a step-by-step training guide for achieving a muscle-up, tailored to [BEGINNER/INTERMEDIATE/ADVANCED] fitness levels. Include exercises like [PULL-UPS, DIPS, EXPLOSIVE PULLS] and specify rep ranges, rest periods, and progression tips. Address common mistakes such as [LACK OF EXPLOSIVENESS, POOR TECHNIQUE, INSUFFICIENT STRENGTH] and how to correct them. Also, suggest a [3/4/6]-week training plan with frequency and intensity adjustments. Ensure the guide is practical, safe, and motivational.