The Magic Flute chorus for several numbers (notably the finales of each act). Mozart also called for a "" (instrument of steel) to perform Papageno's magic bells; an instrument which has since been lost to history, though modern day scholars believe it to be a keyed glockenspiel, which is usually substituted with a celesta in modern-day performances. Charles Rosen has remarked on the character of Mozart's orchestration: "Die Zauberflöte" has the greatest variety of orchestral color that the eighteenth century was to know; the very lavishness, however, is paradoxically also an economy as each effect is a concentrated one, each one—Papageno's whistle, the
Opera Siam Opera Siam Opera Siam, formerly Bangkok Opera, is an opera company in Bangkok, Thailand. It presents an international opera repertoire, together with home-grown favorites. This opera company was founded in 2001, as a production company to mount "Madana", the first full-length grand opera by Thai composer S. P. Somtow. This production featured in the title role the American soprano Stacey Tappan. In 2002, with Somtow as artistic director, the Bangkok Opera began a series of productions, the first being Purcell's Dido and Aeneas. The series then moved onto larger-scale works such as Mae Naak, The Magic Flute, and Turandot. At