Bell 21 / 31Carillon2023
Candle
DWG 23-120Drawn from the working profile. Not to print scale.
01Bell details
Small carillon bells are the hardest to tune: a tenth of a millimetre of metal is several cents of pitch.
- Commission
- High carillon bell
- Place
- Carillon of the Library, Norwell
- Inscription
- CANDLE
- Metal
- Bell metal, 78% copper, 22% tin
- Mould
- Loam, swept by strickle
- Tuning
- True-harmonic, five partials
02Tuning record2,617.4 Hz nominal
| Partial | Ratio | Measured | Off | Deviation |
|---|---|---|---|---|
| Hum | ·25 | 652.1 Hz | -6¢ | |
| Prime | ·5 | 1,311.7 Hz | +4¢ | |
| Tierce | ·6 | 1,565 Hz | -6¢ | |
| Quint | ·75 | 1,959.7 Hz | -3¢ | |
| Nominal | 1 | 2,617.4 Hz | 0¢ |
Ratios to the nominal. Cents are hundredths of a semitone; within ±6¢ most ears hear the bell as in tune.
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Mercy
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