Interchangable and modular acoustic and electric guitar apparatus

A modular string instrument apparatus comprising:

• at least one string instrument neck assembly;
• a modular body assembly;
• a vibration resonator;
• said modular body assembly being substantially hollow and being able to removably engage the at least one string instrument neck assembly,
• said modular body assembly has at least one outer modular body surface and a string side and a body side inner modular body surface;
• said vibration resonator having a first vibration resonator end and a second vibration resonator end;
• said first vibration resonator end being fixedly attached to a non-edge surface on the string side inner modular body surface;
• said first vibration resonator end not contacting the body side inner modular body surface;
• and
• said second vibration resonator end detachably engaging the at least one string instrument neck assembly;
• whereby the user can modify the modular music apparatus by interchangeably removing and attaching the at least one string instrument neck assembly to the modular body assembly for a particular musical purpose.