Having now done this trip, I thought I would return here to tell you exactly how we did it.
We caught a Ryan Air flight from Manchester arriving at Charleroi airport.
From there we booked a return shuttle bus via Voyages Elan, direct to Maastricht, for an unbelievable promotional price of 23 euro return, and had a first class service, arriving in Maastricht 90 mins later.
We had a leisurely 5 minute walk from the station to our hotel, La Columbe which was on the Markt (Town Hall Square) which was a minute away from Virtjhof. Small friendly hotel, excellent location - only drawback to it was there was no lift.
We booked seats a Terrace cafe, Grand Cafe Nieuw Bruin (next to Monople) which was excellent!
We stayed three nights at the hotel, arriving Thursday and saw the rehearsal for the show, Friday was concert, Satuday, we went to a small square leading from Virtjhof, and watched the concert on Veterans Day, in a cafe/bar with a large screen and a fabulous atmosphere.
Sunday we returned home with no problems whatsoever.
The only thing we had no control over was the weather...it poured down on the night of the Concert, but we were lovely and dry under the large parasols in the Grand Cafe Nieuw Bruin.
Would we do it again.....without a doubt!!!