My name is Per and Im 39 and like pipeorgans, had GrandOrgue for a long time until I found out I would buy an MIDI-keyboard and now I have one for maybe 2 years but my PC crash and I got a new Win11 and looks like GO dont like Win11 or its just the bluetooth headset what cant be accepted.

But I found out I can find something what not runs on GO so I reinstall Miditzer and play some cinemaorgan.
Now I wonder if you have any ideas of some free softwares to play music on my computer.

 

Hauptwerk is usually the first thing people mention for software church organs - it's really expensive though. For free, there's Aeolus, which is pretty damn great.

If you don't mind familiarising yourself with the required software, there are a bunch free sampled church organs for the Kontakt (must be bought separately) platform worth checking out:

https://www.sonuscore.com/shop/free-pipe-organ/
https://www.pianobook.co.uk/packs/eiersheimer-orgel/
https://www.samplephonics.com/products/free/sampler-instruments/the-leeds-town-hall-organ

If you're looking for other types of organs, the LostIn70s, CollaB3, Quilcom SIM-TWG interpretations are worth looking at. I don't remember off the top of my head, but I think Arturia Analog Labs Play (free) includes a B3 and Vox Combo that sound good out of the box. The old Martinic Vox and Farfisa freebies are solid too, but may require some post processing.