To run this specific version of MainStage, your Mac needs to meet certain hardware and software thresholds: MainStage 3.6.5 Update - Changes They Didn't Tell You!
If you’re running an older Mac on macOS 10.15 (Catalina) up to macOS 12 (Monterey), 3.6.6 is a sweet spot—stable, mature, and less bloated than the latest versions. MainStage-3.6.6.dmg - allmacworld
In the context of software, a "paper" refers to a peer-reviewed document outlining design and implementation, or a technical white paper detailing product specifications. MainStage 3.6.6 is a professional live performance application for macOS. For more information on software papers, read the full guide at PubMed Central (PMC) (.gov) To run this specific version of MainStage, your