You are certainly not searching correctly. Click "Jams" up top and you should see dozens, you can filter them to see which have started, start soon, etc. I see a ton. Not sure why you can't.
Hum most of the ones I see are for making games. I'm just interested in the music.
Sorry, I had misunderstood your question. Yeah, I only found this one, starts in 13 days.
Music Composer Jam #1 (+ Prizes) - itch.io
