Kenridge, Dutch Reformed Church 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 70 55 5 277.5 Db1 1 555.5 Db2 3 660.5 E2 3 833 Ab2 4 1110 Db3 1 1674 Ab3 13 2320.5 D4 -21