Thanks Jazzy, I haven't bought my paper yet.
This might be of interest!
Italian musicologists have cracked a five century-old acoustic code to reveal that Christianity's largest baptistry is a musical instrument.
A computer analysis of the resonance inside the circular, marble structure at Pisa suggests that renaissance architects designed it to mimic the pipes of a church organ. The acoustics beneath the 75-metre cupola are so perfect that it must be either an incredible coincidence or the work of genius, scholars say.