Genres, etc.

Is there a general purpose tool to build playlists?

I’d like to see something that permits selecting multiple genres while excluding other genres.

My motivation is to exclude “Christmas” songs when building an extensive list of songs outside of holiday times. I often select everything in my music library and put it on random play. Here in the summer, I’d like to do this an select everything that is not marked with the Christmas genre.

Is there a way to do this now? I’d be happy to build a playlist outside of the web interface …

Can you not add these genres to the play queue and save the queue to a playlist? That’s how I’d do it.