Tonight (3-Feb-2006) I heard chimes underneath the BBC on 5975 kHz,
like a different (weaker) station was on the same frequency. Didn't
recognize the theme but it sounded vaguely carribean (maybe steel drums
and not chimes, it was the same note repeated three times and then a
step up, repeat.) Any idea what it was?

Is there (on the net maybe) a catalog of the themes that SW
broadcasters use before their broadcasts?

Tim.