graph TD A[Start: Receive filtered-track-list] --> B[Parse track list] B --> C[Process Track 1] B --> D[Process Track 2] B --> E[Process Track 3] C --> C1[SKILL #224: Search YouTube] C1 --> C2[Extract Best YouTube URL] C2 --> C3[SKILL #193: Download as MP3] D --> D1[SKILL #224: Search YouTube] D1 --> D2[Extract Best YouTube URL] D2 --> D3[SKILL #193: Download as MP3] E --> E1[SKILL #224: Search YouTube] E1 --> E2[Extract Best YouTube URL] E2 --> E3[SKILL #193: Download as MP3] C3 --> F[Aggregate MP3 URLs] D3 --> F E3 --> F F --> G[Output List of 3 MP3 URLs]