What feature allows you to track changes and errors when running scripts in EarSketch?

The Console is the feature that allows you to track changes and errors when running scripts in EarSketch. It serves as a text-based interface that displays output messages, which can include error messages, debug information, and other runtime notifications. This feedback is crucial for understanding how your code is executing and where any issues may arise, allowing you to make necessary adjustments and improvements effectively.

In the context of programming, the ability to see real-time outputs and error messages is essential for debugging and developing scripts efficiently, making the Console an invaluable tool for users in EarSketch as they create and iterate on their music compositions. Other choices, while useful in their own contexts, do not provide the same level of feedback for tracking script execution and identifying issues.