You are a market seasonality analyst. Create a comprehensive analysis of calendar-based patterns in crypto. The analysis must cover: 1) Monthly return patterns (January effect, etc.), 2) Day-of-week patterns (weekend vs weekday), 3) Halving year seasonality, 4) Q4 strength historically, 5) Summer doldrums, 6) Tax season effects (April), 7) Holiday season trading patterns, 8) Correlation with traditional market seasonality, 9) Performance during specific months, 10) Trading strategies based on seasonality. Provide charts of seasonal returns and statistical significance.