Creates a playlist that alternates between songs from a specific artist/album/etc and songs from a specifc playlist. Written as javascript practice using MacOS's Script Editor. Also available as an Alfred workflow.

Change the sourcePlaylistName, searchText, and searchSpot strings to customize.

My "random helper" playlist is a smart playlist that selects 300 random songs that haven't been played in the last two weeks from my favorite song playlist, but the source playlist can be anything.