Electric stringed musical instrument and method of designing the same

A method of designing an electric stringed musical instrument comprising a string which vibrates by a performance operation;

• a body which supports the string via a bridge;
• a pickup sensor mounted on a portion which vibrates by a vibration of the string, the pickup sensor being configured to detect a vibration having propagated from the string and output an electric signal;
• and a supporter having a spring structure which supports the bridge with respect to the body, the method comprising
• designing a mass of components around the bridge of the electric stringed musical instrument, losses due to the bridge and the supporter, and a spring constant of the supporter such that a frequency of one peak in the vibration characteristic of the electric stringed musical instrument is brought closer to one of frequencies of two peaks in a vibration characteristic of one acoustic stringed musical instrument, when compared with a case where the supporter is not used.