SWAP used 1.06 GB ? I hope you are enjoying the lags on OS X.
You can only release that memory if you purge the cache. ( purge command in terminal )
That is something abnormal for a music player... Say I am only listening to music and the 16GBs of RAM loaded aren't enough.... Well.. well... Gonna stick with SongBird for now.
VLC is very bad with FLAC, too much distortion even with nighty builds.
FIdelia doesn't support keyboard control keys ( Play stop next etc.. )