Peter, the Highland bagpipe has a tartan. So it is difficult to tell which bagpipe is being used by the piper in Dover.
However, mouth-blown bagpipes are very loud, where-as small pipes are much softer. Perhaps Howard can say whether the piper was blowing into the instrument.
Jacqui, you can find pipe music galore on You tube. Have you listened to Hebridean Air? It's most beautiful! Just google it.