Audio player on collections

I have three points to add:
1) I think it would be useful make the player opt-in, i.e. activate it only after pressing some button (like "Play All") in the header of the collection.
2) Otherwise, it will be great to be able to "extract" the tiny video player to above the expanded player (when playlist is visible).
3) Here I'm repeating myself, but in the case of only allowing YT videos, I think the separate field for the video for the player is a must. But it can be used for other purposes too, like providing alternative versions for playlist while leaving the song on the site intact.

Here is the direct link: https://lyricstranslate.com/node/add/collection. It is available in the "Actions" menu and in "Lyrics" → "Collections" → "Create Collection" button.