graph TD A[Receive MP3 URLs of instrumental stems, tempo, and beat positions] --> B{For each instrumental MP3 file} B --> C[Use skill #197 to extract 1 beat samples] B --> D[Use skill #197 to extract 2 beat samples] B --> E[Use skill #197 to extract 4 beat samples] B --> F[Use skill #197 to extract 8 beat samples] C --> G[Add extracted 1 beat samples to list] D --> H[Add extracted 2 beat samples to list] E --> I[Add extracted 4 beat samples to list] F --> J[Add extracted 8 beat samples to list] G --> K[Combine all extracted instrumental samples] H --> K I --> K J --> K K --> L[Output list of .wav file URLs for extracted instrumental samples]