I can't open the free MainStage patches in MainStage

To use the free MainStage patches, you'll have to have a MainStage concert open first. Keep in mind, these aren't concert files, they are patch files and set files.

You need to either open a stock MainStage concert like "Keyboard" and select choose.

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You can then drag the patch from your Downloads folder in Finder or if you downloaded one of the Patch of the Week Volumes, you can drag a patch in from one of those folders. 

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​​We also recommend you move your patches out of the downloads folder and into Music > MainStage. Then, you'll be able to access them in your Patch Library under User Patches.

​​You can add a new patch and add any of them that you want. If you click on another it will replace the one in the patch list. You'll hit the plus to add a new one. ​