Relationship between pitch and string length

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SUMMARY

The relationship between the length of a guitar string and the frequency of the pitch it produces is indeed linear. Specifically, if the frequency of a string is 60 Hz and its length is halved, the resulting frequency will be 120 Hz, assuming all other variables such as thickness, tension, and material remain constant. This phenomenon can be explained by the principles of harmonic frequencies, where exciting the second harmonic of the string results in a frequency that is double that of the fundamental frequency.

PREREQUISITES
  • Understanding of harmonic frequencies in string instruments
  • Knowledge of basic physics principles related to sound waves
  • Familiarity with guitar string properties such as tension and thickness
  • Basic knowledge of musical pitch and frequency measurement
NEXT STEPS
  • Research the physics of string vibration and harmonics
  • Explore the impact of string tension on pitch frequency
  • Learn about different materials used in guitar strings and their effects on sound
  • Investigate the relationship between string length and pitch in other stringed instruments
USEFUL FOR

Musicians, particularly guitarists, physics students, and anyone interested in the acoustics of string instruments will benefit from this discussion.

guilesar
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Is the relationship between the length of a guitar string and the frequency of the pitch it produces a linear relationship? e.g. If the frequency of the pitch of a string is 60 Hz and I halve the length, should it produce a pitch with a frequency of 120 Hz?

This is assuming all other variables, tickness, tension and material are all held constant.
 
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guilesar said:
If the frequency of the pitch of a string is 60 Hz and I halve the length, should it produce a pitch with a frequency of 120 Hz?
Yes. Imagine you excite only the second harmonic of the string: the frequency is doubled and the mid point of the string is a node. Putting your finger there and letting half the string vibrate gives the same result.
 

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