Understand that 'resonator' in this context helps increase volume or clarity of sound. She played the violin after its resonator was adjusted, producing a clearer tone.
Pro Tip 2/3
Not an Engine Part
'Resonator' here is not related to automotive but to sound in musical instruments. The banjo uses a resonator, not to be confused with car parts.
Pro Tip 3/3
Musical Use
'Resonator' is commonly associated with acoustic instruments, not electronic gadgets. My acoustic guitar's resonator helps project the sound without electronics.