Bell attributes: Difference between revisions

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While the profile of the bell can be adjusted to provide bells that are very good sounding, bells that ring together, especially bells intended to be members of a chime or carillon instrument, are machine tuned after casting.

The tuning process generally involves a lathe. Horizontal shop lathes can be used for small bells, but large vertical engine lathes are used for large bells. This process always involves the removal of material and so it is an irreversible process~~, and a large~~ risk ~~for~~ valuable bells.

The tuning process generally involves a lathe. Horizontal shop lathes can be used for small bells, but large vertical engine lathes are used for large bells. This process always involves the removal of material and so it is an irreversible process. The risk of re-tuning valuable bells often does not justify the perceived benefits.

The goal of tuning is generally to bring the [[Bell Harmonic Partials|five main bell partials]] into conformity with the appropriate notes of a given scale. Modern carillon instruments are tuned to an equally temperament scale based on A=440 Hertz. Both the strike tone and other partials of bells in these instruments must conform to this scale in order to avoid beats and 'wolf tones' when playing bells together.

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 While the profile of the bell can be adjusted to provide bells that are very good sounding, bells that ring together, especially bells intended to be members of a chime or carillon instrument, are machine tuned after casting.
-The tuning process generally involves a lathe. Horizontal shop lathes can be used for small bells, but large vertical engine lathes are used for large bells. This process always involves the removal of material and so it is an irreversible process, and a large risk for valuable bells.
+The tuning process generally involves a lathe. Horizontal shop lathes can be used for small bells, but large vertical engine lathes are used for large bells. This process always involves the removal of material and so it is an irreversible process. The risk of re-tuning valuable bells often does not justify the perceived benefits.
 The goal of tuning is generally to bring the [[Bell Harmonic Partials|five main bell partials]] into conformity with the appropriate notes of a given scale. Modern carillon instruments are tuned to an equally temperament scale based on A=440 Hertz. Both the strike tone and other partials of bells in these instruments must conform to this scale in order to avoid beats and 'wolf tones' when playing bells together.