graph TD A[Start] --> B[Input: 3x MP3 URLs] B --> C1[Track 1 Analysis] B --> C2[Track 2 Analysis] B --> C3[Track 3 Analysis] C1 --> D1[Skill #180: Extract Beat Data] D1 --> E1[Calculate 16th Beat Timestamp] E1 --> F1[Skill #219: Cut WAV Sample] F1 --> G1[WAV Snippet URL 1] C2 --> D2[Skill #180: Extract Beat Data] D2 --> E2[Calculate 16th Beat Timestamp] E2 --> F2[Skill #219: Cut WAV Sample] F2 --> G2[WAV Snippet URL 2] C3 --> D3[Skill #180: Extract Beat Data] D3 --> E3[Calculate 16th Beat Timestamp] E3 --> F3[Skill #219: Cut WAV Sample] F3 --> G3[WAV Snippet URL 3] G1 --> H[Combine WAV URLs] G2 --> H G3 --> H H --> I[Final Output: Array of 3x WAV URLs]