Issues with audio and animation at the Configurator page

[p-himik]

To reproduce, go to https://configurator.abcjs.net/audio and make sure Animage? is checked. Now, press play, pause, rewind a few times. And then press play and pause immediately. You should see something like this: A few issues here:

1. Notes highlighted before rewinding stay highlighted after the rewind
2. The note in the tempo notation is highlighted along with the first note
3. The chord symbol is highlighted (but maybe it makes sense to highlight it, I'm not sure)

In my own code, I also have some text annotation for the score. But that could be excluded from being highlighted by just using {abc_classes: true} and filtering all of the nodes before highlighting them by "abcjs-note" and "abcjs-rest" classes. It also resolves the 3rd issue.

But I'm not sure if I can solve the 1st and the 2nd issues in my own code.

[paulrosen]

I'm working on a new audio method and will make sure that this doesn't occur when I switch to the new method.