@kindafishy:
Regarding
the bass-note - you were totally right.
Somehow another bass-wav-sequence was selected,
and measure 3 was on G instead of F. That was basically
the wrong tone. And the wrong bass sequence comes from
the time when we tried different chord progressions.
What upsets me is that none of us heard this. Did we only
listen to the song via iPhone and boom box? Ooops, I
think we need to rebuild the listening and testing process
... in any case, thank you for hearing that!
PS: The song has of course been corrected in the meantime.