We visited on our half day guided tour of Manaus and joined one of the organised tours of the teatro. Staff were pleasant with good english. An orchestra were rehearsing which really added to the experience. The place is really impressive and like stepping back in time. The glamour of the teatro is really quite incongruous to the rest of the city which naturally adds to it's appeal. It was interesting to see the black and white motif on the pavement outside. Representing the meeting of the waters, this motif has been reproduced across Brazil, including of course on the famous Copacabana promenade.