Musical instrument training aid

A musical instrument training aid, comprising:

• a bridgelike base member comprising two arched bridge walls arranged in a parallel manner, two brackets respectively connected between said two arched bridge walls at opposing front and rear ends thereof, and two pairs of pivot shafts respectively extended from the opposing front and rear ends of said arched bridge walls at two opposite lateral sides relative to said brackets;
• four suspension arms respectively pivotally coupled to said pivot shafts of said bridgelike base member, each said suspension arm comprising a coupling barrel disposed at one end thereof and pivotally coupled to one said pivot shaft, a stop block located on said coupling barrel for stopping against one said arched bridge wall to limit the angle of rotation of said coupling barrel relative to the respective said pivot shaft, a leg disposed at an opposite end thereof, and a connection portion connected between said coupling barrel and said leg;
• and
• four anchoring boots respectively capped on said legs of said suspension arms and adapted for securing said suspension arms and said bridgelike base to a waist of a violin.