I was using Cantabile with my PC and I loved it. My daughter bought a new MAC and gave me the old one. I thought that I could just transfer Cantabile to the MAC but that is not possible. Then somebody suggested Mainstage and to my surprise, that software does not support the operating system on my MAC. So, I am anxious to know about the development of Cantabile for MAC.
Don’t know if Brad is focused developing the Mac version, ask him.
Meanwhile, you can install Apple BootCamp and run Windows on the Mac.