The latest release of xLights for Macintosh can be found at the following link: http://www.dankulp.com/xlights/?C=M;O=D
Double click on the compressed disk image you downloaded to mount the disk.
Click, drag and drop the xLights application over the Applications folder to copy the program on to your computer. Or you can copy the xLights application to another location of your choice too.
For the QM vamp plugin packages that can be installed without Audacity installed, first download the plugin package from the following address:
Direct link to Latest Version: qm-vamp-plugins-osx-v1.7.1.dmg
Double-click the 'qm-vamp-plugins-osx-v1.7.1.dmg' file in your download folder and extract the files. Then copy 'qm-vamp-plugins.dylib', 'qm-vamp-plugins.cat', and 'qm-vamp-plugins.n3' to one of the following locations on your computer.
/Library/Audio/Plug-Ins/Vamp/ (for plugins to be available to all users)
$HOME/Library/Audio/Plug-Ins/Vamp/ (for plugins to be available to you only)