Mark music-parts similar to chapters

[k-nut]

I usually listen to podcasts at a higher speed. This has an unpleasant effect when songs come up because those are not meant to be played at an alternative speed. It would be nice if the durations that are just music could be marked up separately so that player could always play those in regular speed.

[funkenstrahlen]

This could also be interesting to automatically skip music parts.

[Cj-Malone]

I think this should be done through a chapter type, you could also identity intros and outros so clients could skip them on binge viewings, like Netflix.

I also think end should be added, sometimes there is a gap between chapters or even a chapter "inside" another and when it's ended it should return to the former.