graph TD A[Start Flow] --> B[Subagent1: YouTubeToMP3] B --> C[Subagent2: AudioSeparator] C --> D[Subagent3: SummaryCompiler] B1[Input: 3 YouTube URLs] --> B B --> B2[Output: MP3 URLs] B2 --> C C --> C1[Output: Vocal/Instrumental URLs] C1 --> D B1 --> D B2 --> D D --> E[Final Summary Text] E --> F[End Flow]