Audio - detecting HTML loops containing audio links

[rvencu]

In order to get significant labels for audio a HTML loop detector should be employed. Below some examples
http://www.nemoapps.com/phrasebooks/cantonese - audio link -> audio -> td -> tr -> tbody (looping on tr)
https://sound-effects.bbcrewind.co.uk/search?cat=Nature - audio link -> audio -> div -> ... -> div (looping on div, responsive design)
https://freemusicarchive.org/home - audio link -> div while labels are inside looping div children tags

algorithm idea:
1 detect and count audiolinks
2 if multiple, go to first one, check parent tag (A)
3 check siblings of A if they contain audiolinks, if so A is the looping tag
4 if not go up one parent tag (B), repeat steps 3 and 4 until looping tag is detected
5 count if audiolinks match initial number (use fuzzy logic, like if over 90%), if so then stop looping
6 for each loop extract audiolink and labels as text inside children of looping tag or text inside attributes of the audio player (html5 audio tag)