Rainbow Tower Rainbow Tower The Rainbow Tower is a tower located at the Rainbow Plaza Canada–US border station of the Rainbow Bridge in Niagara Falls, Ontario, Canada. Construction on the tower was completed in 1947. The tower, part of the Canadian plaza of the bridge, was designed by Canadian architect William Lyon Somerville. The Rainbow Tower houses a carillon—a musical instrument consisting of a baton keyboard that controls a series of bells. The Rainbow Carillon is sounded three times a day, 365 days a year. It features 55 bells with a total weight of over 43 tons. The instrument is controlled via
A (musical note) A (musical note) La or A is the sixth note of the fixed-do solfège. Its enharmonic equivalents are B ("Heses") which is a diatonic semitone above A and G (Gisis) which is a diatonic semitone below A. "A" is generally used as a standard for tuning. When the orchestra tunes, the oboe plays an "A" and the rest of the instruments tune to match that pitch. Every string instrument in the orchestra has an A string, from which each player can tune the rest of their instrument. "A" is also used in combination with a number (e.g. A-440) to label