tunistn.

/ˈtjuːnɪst/Etymology: < tune v. + -ist suffix.
rare.
society > leisure > the arts > music > musical sound > pitch > tuning or intonation > [noun] > tuner
18.. S. Taylor 132 (Cent. Dict.).
This entry has not yet been fully updated (first published 1915; most recently modified version published online March 2018).