Interesting request, I can certainly see value in it. Would you want the option to repeat this song, if the ‘alarm’ wasn’t acknowledged, or does the song only play once through? 

I wouldn’t want it to be repeated. Songs are typically 3 to 4 min long so that would be enough in my opinion.

The alarm could be set to play more than 1 song but the alarm stops either when I turn it off or when the song playlist ends.

Interesting, thanks for the clarification. I hope something like it ends up on the Sonos list.