Over the last couple of days I worked on a new addon that makes working with baked audio data much easier. Also it comes with an interactive tool to place timeline markers which can be used for many things like music animation or video editing.
Here is a first preview:
Tell me if you have a question or suggestion.
Btw: I developed this addon (currently around 1100 lines) in Blenders Text Editor as stress test for my Code Autocomplete Addon. Worked out well as you can see in the video.
Hope you find it useful,