One who makes their own musical instruments.

There are some musicians/ composers are not content to live within the boundries of existing instruments. Some went on to invent and build incredibly wild new instruments. Some examples of such innovators include:

• John Cage
• Harry Partch
• Steve Reich
• Thaddeus Cahill
• Morton Subotnick
• Robert Moog
• Laurie Anderson
• David Tutor
• Raymond Scott
• Karlheinz Stockhausen
• Pierre Schaeffer
• Pierre Henry
• Max Eastley
• Leon Theremin
• Mark Deutsch
• Jon Gibson