<pre>
<div class="iron-audioplayer srp_post_player sr_waveform_mediaElement playlist_has_no_ctas" id="arbitrary-instance-65807c63673ce-28f90e762d" data-id="arbitrary-instance-65807c63673ce" data-lazyload="" data-albums="1000738" data-category=""data-url-playlist="https://www.maryphagan.com/?load=playlist.json&title=&albums=1000738&category=&posts_not_in=&category_not_in=&feed_title=Audiobook,%20Tuesday,%2029th%20April%201913%20L.%20M.%20Frank,%20Factory%20Superintendent,%20Detained%20By%20Police,%20The%20Atlanta%20Journal,%20Read%20By%20Mary%20Frances%20Phagan%20Kean&feed=https://maryphagan.com/audio-files/atlanta-journal/1913-04-29-l-m-frank-factory-superintendent-detained-by-police.mp3&feed_img=&el_widget_id=&artwork=&posts_per_pages=-1&all_category=&single_playlist=1&reverse_tracklist=&audio_meta_field=&repeater_meta_field=&import_file=&rss_items=-1&rss_item_title=&is_favorite=&srp_order=date_DESC" data-sticky-player="0" data-shuffle="" data-playlist_title="" data-scrollbar="" data-wave-color="" data-wave-progress-color="" data-spectro="" data-no-wave="" data-hide-progressbar="" data-progress-bar-style=""data-feedurl="1" data-notrackskip="" data-no-loop-tracklist="" data-playertemplate ="skin_boxed_tracklist" data-hide-artwork ="" data-speedrate="1" data-tracks-per-page="" data-pagination_scroll_offset="" data-adaptive-colors="" data-adaptive-colors-freeze="" style="opacity:0;">
</pre>
Hi,
Are you refering to the data-url-playlist attribute :
https://www.maryphagan.com/?load=playlist.json&title=&albums=1000738&category=&posts_not_in=&category_not_in=&feed_title=Audiobook,%20Tuesday,%2029th%20April%201913%20L.%20M.%20Frank,%20Factory%20Superintendent,%20Detained%20By%20Police,%20The%20Atlanta%20Journal,%20Read%20By%20Mary%20Frances%20Phagan%20Kean&feed=https://maryphagan.com/audio-files/atlanta-journal/1913-04-29-l-m-frank-factory-superintendent-detained-by-police.mp3&feed_img=&el_widget_id=&artwork=&posts_per_pages=-1&all_category=&single_playlist=1&reverse_tracklist=&audio_meta_field=&repeater_meta_field=&import_file=&rss_items=-1&rss_item_title=&is_favorite=&srp_order=date_DESC
? This URL is required and the & characters are there to build the url queries. Its basically an URL.