Play instruments to evaluate their sound quality and to locate any defects.
Adjust string tensions to tune instruments, using hand tools and electronic tuning devices.
Reassemble instruments following repair, using hand tools and power tools and glue, hair, yarn, resin, or clamps, and lubricate instruments as necessary.
Disassemble instruments and parts for repair and adjustment.
Repair or replace musical instrument parts and components, such as strings, bridges, felts, and keys, using hand and power tools.
Inspect instruments to locate defects, and to determine their value or the level of restoration required.
Compare instrument pitches with tuning tool pitches to tune instruments.
Align pads and keys on reed or wind instruments.
Solder posts and parts to hold them in their proper places.
Remove dents and burrs from metal instruments, using mallets and burnishing tools.