Cook Carillon Tower Cook Carillon Tower The Cook Carillon Tower is a 10-story-tall carillon-clock tower located in the center of the Grand Valley State University-Allendale campus in Allendale, Michigan. The tower and carillon were built in 1994 with help from generous donations by Peter C. and Pat Cook for which it is named. The tower is considered to be a major icon of both the university and its campus and creates a notable central focal point on the Allendale campus. The 48 carillon bells are cast of bronze by the Royal Eijsbouts Bellfounders and Tower-clock Makers of the Netherlands. The largest bell weighs
A♭ (musical note) A♭ (musical note) A (A-flat; also called la bémol) is the ninth semitone of the solfège. It lies a diatonic semitone above G and a chromatic semitone below A, thus being enharmonic to G, although in some musical tunings, A will have a different sounding pitch than G. When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of the A above middle C (or A) is approximately 415.305 Hz. See pitch (music) for a discussion of historical variations in frequency. A/G is the only note to have only one other enharmonic.