I am trying to use this particular piano plugin on my GarageBand DAW on a Macbook. http://www.supremepiano.com/index.html?piano1.html I downloaded it, unarchived (unzipped) it and installed the .pkg file. Now I understand, that if the install worked properly, on my Macintosh HD, under Library --> Plugins, I should see this Plugin, but I dont.

I also tried opening GB, creating a track(software instrument), open Smart Controls and click on Plugins. I don't see the plugin I downloaded, only the default Apple Plugins.

  • 32-bit or 64-bit?
    – Mark
    Oct 31, 2019 at 1:12
  • What's the O/S and word length of the plugin? make sure that GB has been restarted and that the O/S supports the word length that the plugin uses.
    – Mark
    Oct 31, 2019 at 3:32
  • Thank you. 64 bit. How can i check that the O/s supports the word length?
    – Victor
    Oct 31, 2019 at 16:54
  • Mojave was the last O/S to support 32-bit executables.
    – Mark
    Nov 1, 2019 at 11:20
  • @Timinycricket: Thank you. There is no component file. There is a .pkg file which is an executable. When clicked, it installs the plugin.
    – Victor
    Nov 1, 2019 at 13:14

1 Answer 1


Garageband supports Audio Units (AU). If the plugin only supports VST format, it won’t appear.

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