Description

The issue is that there is no way to start a music in background and then continue the execution of the shortcut.
An example of this issue is the Shazam extension. You can use this extension to recognize a song, but you have to manually start the playback and then manually start the shortcut. See for example: https://routinehub.co/shortcut/11260/
It is also impossible to manage a list of files like a playlist from a shortcut, because you cannot start/stop the playback in background and more importantly you cannot know when the song finished playing to start playing another one.
Ideally there should be the following actions:

• start playing media file in background and return
• stop playing media file in background and return
• play media file and wait for it to finish playing (similar to "wait to return" command: https://www.matthewcassinelli.com/actions/wait-to-return/ )
• play media file in background and restart shortcut ( similar to wait to return, but it restart the shortcut when the song finished playing.. useful to avoid the time limit of iOS on long running shortcuts)

Ideally it should be possible to also target specific apps. For example, VLC:

• add media file to VLC queue
• start/stop playing VLC queue
• reset VLC queue
  But I'm not sure if the url action is enough for do that, or it is needed for the App to implement Shortcuts actions extensions.