Many thanks to all who have replied.
Yes, I agree that there are some very nice Celtic styles in BB that include some very good sounding instrument phrases and motifs, but it is the quality of the lead melody instrument sounds that is my problem.
It may have to do with the synth I'm using but it's the one provided by PG Music, Coyote WT.
Mac - I'd be very grateful if you could expand on some of the ways I might be able to improve my MIDI sounds.
Many thanks
Godfrey