Oh, see this might be interesting then because it would offer some functionality that i've been wanting for a long time. You see, the fact that the playlists are placed in one of the custom tag columns means it can be used as a criterium to sort auto-playlists.
So, say this script had an alternative version that read auto-playlists instead of static playlists and limited itself to auto-playlists with a name that starts with a certain prefix.
You can then theoretically make an autoplaylist that is based on whatever criteria you desire and have it sorted by genre, but not alphabetically, which is currently the only option.
This would allow you to make a playlist that contains exactly the songs you want, but plays flowingly instead of randomly or alphabetically.
Make the prefixed auto playlists that the script acknowledges contain genres only, say ambient, soft rock, alternative rock, metal.
Then use the autoplaylist to create a, Saturday morning wake-up playlist that starts with ambient, then soft rock, then alternative rock and ends with metal.
And that's just an example, there are countless of other possibilities.