String – Natural Frequency

String – Natural Frequency: Unlike Springs that oscillate axially, Strings’ vibration is transverse to its length.
Selected Fret – #4 in picture – determines effective string length and respective response frequency.
In a String, material, geometrical proportions and tension determine its Response Frequency.

In a fabric ply, fill threads will eventually be “active”, acting as frets whenever energetic Warp Thread prestress is present.
When two adjacent fill threads become “active”, they define extremely high pitched warp thread string-segments.