Maybe your ears are more sensitive than mine, but I don't detect any problem in either DKC or Pop-Up... so I'm not sure what to say to that. I was testing between bgb and gameyob v0.4.1.Posted this some pages ago: There seems to be a small dissonance (as of v4.1) between channel 3 and the others. It's very noticeable in Pop-Up's theme, and less but still noticeable in DKC map screen. Any ideas?
Edit: What system are you using? It's unlikely that would make a difference, but, might as well check.
Edit Edit: Okay, I think I hear it after repeatedly switching between listening to channels 2 and 3. Channel 3's pitch seems to dip a tad lower. I would never have noticed that without checking them individually.