If you're having issues installing Vinyl on mac, it's likely you're on the latest macOS 10.15 Catalina which not all of our products support.
We've created an alternate download option for Vinyl for Catalina users here:
Click to download
To run it, first double click on the .zip file to unzip it. Then right-click on the .pkg file and select Open. After doing so you'll get a pop up which should also allow you to press Open on.