Oh that is a shame! Have eaten at Taverne du Passage previously and the moules were excellent. Thanks for putting the other two restaurants onto my radar.
Went to hear a piano/organ recital last night at Bozar. Le Boeuf hall is a beautiful sounding, medium sized hall with an impressive, newly renovated monumental organ (as of September!). Looked at the season concert schedule and it's darn impressive including some great organ recitals, classical, world music and jazz. Lovely city with this gem of a music venue.