Convert them to ogg.vorbis format using a music conversion programme such as dbpoweramp
http://www.dbpoweramp.com/dmc.htm
or audacity
http://audacity.sourceforge.net/download/
and put them into your gramaphone folder
C:\Program Files\Ubisoft\GWX2.1\data\Sound\Gramophone
If you experience any problems just let me know....I have already converted the full album to ogg.vorbis and should be able to send any of your requirements to you