This tool is designed to make it easier to solve this geocaching mystery.
I don't own any of the data, I only wrote this tool to work with it. The source code for the tool is here.
The tool is client-side only, which means that your data stays on your device and is not sent to any server. This means that you MUST save the data regularly if you don't want to lose it (use the download state CSV button). Data is lost if you clean browser data for this page. This only happens if you choose to do it. You can't easily switch browsers or devices because of this design.
WARNING: The tool might be updated from time to time which also might risk your solution data, as I do minimal testing.
Usage:
Select a batch to work on (source file). These refer to the html pages in the original solution.
Click on a band image to view and edit its details.
You can jump between bands using the arrow buttons.
Mark bands as solved or listened, add notes, and input codes.
Regularly download your current state as a CSV file for backup or sharing.