Originally Posted by
CedarSlayer
If I tap any guitar or mandolin or violin, or bandurria or ... it will make the strings vibrate. You may be noticing the normal vibrancy of the instrument.
Vibrations go from the strings to the bridge to the soundboard to the air. Vibrations go from the air to the soundboard to the bridge to the strings. Vibrations go from the strings to the air. You can shout at a good instrument and then hear the string ringing. If you sing a G loudly, then you can hear the G string on the mandolin.
Bob
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