Don't get the playlist queue functionality. On multitrack recordings (e.g. https://thekno.dev.lohro.de/recordings/85), all tracks of an recording are enqueued. When starting another recording, the current playing are removed.
Is it useful to provide two buttons for playing a recording: 1) Start immediately 2) Enqueue to playlist? What on 1)? Track(s) are prepended to playlist, 2) tracks are appended?