The organ itself isn't copyrightable (it's a physical object), but the recordings of the organ are. Most quality SF2 files either:
Using a dedicated pipe organ SoundFont provides distinct benefits over generic synthesizer presets or massive, resource-heavy plugins. 1. Authentic Acoustic Spatiality
To use an .sf2 file in your modern production workflow, you will need a SoundFont player VST. Some popular and free options include:
Pipe Organ Sf2 [updated] Guide
The organ itself isn't copyrightable (it's a physical object), but the recordings of the organ are. Most quality SF2 files either:
Using a dedicated pipe organ SoundFont provides distinct benefits over generic synthesizer presets or massive, resource-heavy plugins. 1. Authentic Acoustic Spatiality
To use an .sf2 file in your modern production workflow, you will need a SoundFont player VST. Some popular and free options include: