Is there a specific error that you’re seeing? What is the output when you try to run muse-player? Please copy-and-paste it here.
So just to be clear, have you installed the Muse SDK Tools using the installer from developer.choosemuse.com in addition to manually installing dependencies for the muse-player project? Are you trying to develop muse-player, or just use it? If you just want to use it, all you need to do is run the Muse SDK Tools installer. The installer will take care of all the dependencies for you.
If you haven’t run the Muse SDK Tools installer, then the directory containing the muse-player executable will not be in your path. You will have to add it. Furthermore, the Muse SDK Tools installer will link to its own build of muse-player that it places in /Applications/Muse, NOT the one you may have in a clone of the muse-player repo somewhere else on your machine.