Sound system compatibility - BASS (http://www.un4seen.com/) Version 2.2 to 2.4 should work. DirectX 3 or newer is required For midi playback, additional to the plugin a sound font is needed. The sound system layer will use the largest soundfont file (*.sf2) in the Calaym directory, or alternatively the largest in the windows system folder; You may download the 'Chorium RevA by openwrld' soundfont (25MB), a link is provided on the BASS homepage; The setup version of Calaym has an option to download this file.
Installation:

| When using the setup version, choose BASS as sound system, and choose optional plugins
| When using the zip-version, you have to

| copy (overwrite!) Calaym.lay from layers\bass subdirectory to your Calaym directory
| download the current bass package from http://ctuser.net/, or the packages from http://www.un4seen.com/. Extract bass.dll and optional plugins to your Calaym directory)
| Get a sound font if needed (see above)