Hi Tony,
I also have found this with BIAB.
My thoughts on this may be way off base but here they are anyway.
Could it be that the sound card is retaining a little bit of sound.
Perhaps the sound card is not being flushed out properly.
I find that it happens more if I stop the song mid stream so to speak, but if I let the song finish it doesn't happen.
Maybe I am wrong but someone with knowledge of electronics can advise.
George
P.S
Here are my computer settings:
Microsoft Windows 7 Home Premium
Central Processor AMD A8-3500M APU with Radeon(tm) HD Graphics
Video Adapter AMD Radeon(TM) HD 6620G
Video Memory 512.00 MB
Screen Resolution 1366 x 768
Sound AMD High Definition Audio Device