Standalone: /Applications/Practice Player.app
Audio Unit: /Library/Audio/Plug-Ins/Components/Practice Player.component
VST3: /Library/Audio/Plug-Ins/VST3/Practice Player.vst3
AAX: /Library/Application Support/Avid/Audio/Plug-Ins/Practice Player.aaxplugin
Earlier copies in the current user's Audio Plug-Ins folders are removed as well.