Top 10 Questions for Violin Mechanic Interview

1. What are the key differences between setting up a violin for solo and orchestral playing?

• Solo playing: Violins set up for solo playing often have a higher string tension, which provides a brighter and more powerful sound. The bridge is typically set higher, resulting in a lower string action. This allows for a more agile and precise playing style.
• Orchestral playing: Violins set up for orchestral playing generally have a lower string tension, producing a warmer and softer sound. The bridge is set lower, providing a higher string action. This setup facilitates playing in harmony with other instruments and allows for smoother transitions between positions.

2. Describe the process of carrying out a complete fingerboard dressing, including the tools and techniques involved.

Leveling

• Remove any unevenness or curvature using a fingerboard plane.
• Check for levelness with a straight edge.

Crowning

• Use a fingerboard scraper to create a gentle curve on the top of the fingerboard.
• The curve should be slightly higher in the middle than at the edges.

Refining

• Use progressively finer sandpaper to smooth and polish the fingerboard.
• Apply a conditioning oil to protect the wood.

3. How do you diagnose and repair sound post cracks in a violin?

• Diagnosis: Examine the crack and surrounding area for signs of damage, such as splintering or deformation. Listen for any buzzing or rattling sounds when playing the violin.
• Repair: Inject a thin adhesive into the crack using a syringe. Clamp the violin securely and allow the adhesive to set. If the crack is extensive, it may require additional reinforcement with a sound post patch.

4. What are the common causes of wolf tones in a violin, and how can they be resolved?

• Causes: Wolf tones are caused by specific resonant frequencies of the violin body that interfere with the vibration of the strings. They can be triggered by certain notes or combinations of notes.
• Resolving: Use a sound post adjuster to slightly alter the position of the sound post. This can change the resonant frequencies and eliminate or minimize wolf tones.

5. How do you assess the condition of violin bows and carry out necessary repairs?

• Assessment: Examine the bow for any loose or damaged hair, cracks in the stick or frog, or deformation of the cambre. Test the tension and elasticity of the hair.
• Repairs: Replace or repair damaged hair, glue any cracks, and reshape the cambre if necessary. Adjust the hair tension to achieve the desired playing feel.

6. Describe the importance of proper peg fitting and the techniques involved in fitting new pegs.

• Importance: Properly fitted pegs ensure the stability and intonation of the violin. They prevent the pegs from slipping or becoming loose, which can lead to tuning problems.
• Fitting: Use a peg shaper and reamer to gradually enlarge the peg hole to fit the peg snugly. Apply peg compound to the peg and hole for lubrication and to prevent slipping.

7. How do you adjust the action of a violin to accommodate different playing styles and preferences?

• Raising the action: To raise the action, remove material from the bottom of the bridge by sanding or shaping it with a knife.
• Lowering the action: To lower the action, add material to the top of the bridge by shimming or gluing in a thin piece of wood.

8. What are the key factors to consider when choosing the right strings for a particular violin?

• Violin size: The size of the violin determines the length and tension of the strings required.
• Playing style: Different playing styles, such as solo or orchestral, require strings with specific tonal qualities and responsiveness.
• Violin sound: The type of strings used can influence the overall sound of the violin, such as warmth, brightness, or projection.

9. Describe the steps involved in setting the intonation of a violin using a strobe tuner.

• Tune the A string: Use a standard tuning fork or electronic tuner to set the A string to the correct pitch.
• Adjust the other strings: Play the A string and the D string simultaneously while observing the strobe tuner. Adjust the D string until the strobe lines are perfectly aligned.
• Repeat for other strings: Continue the process for the G and E strings, comparing them to the A string and adjusting their tuning accordingly.

10. How do you maintain and care for a valuable violin in different environmental conditions?

• Temperature and humidity: Store the violin in a case with a hygrometer to monitor humidity levels. Keep it away from extreme temperatures and sudden changes.
• Cleaning: Use a soft, clean cloth to remove any dust or rosin buildup. Avoid using harsh chemicals or abrasive cleaners.
• Repairs: Have the violin inspected and serviced by a qualified violin maker or luthier on a regular basis to prevent or address any issues.