Rondebosch St. Paul's AC Hum Prime Tierce Quint Nominal Superquint Double Octave Diameter Height Thickness Freq Note Dev Freq Note Dev Freq Note Dev Freq Note Dev Freq Note Dev Freq Note Dev Freq Note Dev 66 50 5.5 325 E1 -24 661.5 E2 5 778 G2 -13 972 B2 -27 1303.5 E3 -19 1944.5 B3 -27 2670.5 E4 21