1.3 million fans have gone to 900 performances in 48 countries to hear orchestras play soundtracks and to watch Harry Potter movies.
What a great introduction to an orchestra it is. As Jade Kopps of BWW puts it "Smooth strings standing in for Nagini's sinister slither. Delicate harp and flute notes or frenzied tremolo from violas and cellos building tension. Five percussionists plus Timpani give a bold undertone along with the tuba and bassoon."
This is not the sedate atmosphere of a Concert Hall. Audience members are encouraged to cheer for their house and for their heroes or heroines and to boo their villains. Interestingly this audience cheers Mr Snape, a little to my surprise. And the audience, while absorbed in the movie, never fails to notice when the orchestra has completed a piece, and to enthusiastically applaud.
This is in every sense a darker movie than its predecessors, which is to a large degree reflected in Doyle's score. But the Quidditch World Cup and the Triwizard tournament gives the opportunity for celebration to contrast with ominous forebodings.
The Yule Ball is great fun, on screen and for the orchestra. "Potter's Waltz", and "Do the Hippogriff" were hugely enjoyed
Often excellent background music creates atmosphere although we are barely aware of it at the conscious level. In these performances, we are very conscious of the music and of the instruments producing it.
Most of us stayed for the closing credits and had the treat of the orchestra reprising some of the musical highlights while we were focusing almost entirely on them.
It was a delight to see tiny children loving the movie, and being entranced by the orchestra.
Hopefully, a full Convention Centre is a money-spinner for the QSO, subsidising their season.
But more importantly, who knows how many children fall in love with orchestral music as well.