Detail of the slotted headstock on a Vintage Paul Brett V12 12-string electro-acoustic guitar, taken on November 8, 2016.
Detail of the headstock and Waverly tuners on a Collings D2H T dreadnought acoustic guitar, taken on September 20, 2016.
Detail of the headstock and Grover tuners on a Tanglewood Sundance Performance Pro X70 TE electro-acoustic guitar, taken on April 4, 2017.
Detail of the headstock and Avian Black tuners on an Avian Ibis Rosewood Deluxe Fan Fret acoustic guitar, taken on April 4, 2017.
Detail of the headstock and Avian Black tuners on an Avian Ibis Rosewood Deluxe Fan Fret acoustic guitar, taken on April 4, 2017.
Detail of the tuners on a Gretsch G9511 Style 1 Single-O Parlour acoustic guitar, taken on March 20, 2017.
Detail of the headstock and chrome tuners on a Sigma JM-SGE electro-acoustic guitar, taken on February 3, 2017.
Detail of the headstock and Grover tuners on a Sigma GJA-SG200 electro-acoustic guitar, taken on February 3, 2017.
Student at the Istituto Musicale Luigi Boccherini in Lucca, Tuscany, tunes her violin on the terrace of the building on Piazza Del Suffragio, 2007....
Detail of a Gretsch Roots Collection acoustic guitar with an Appalachia Cloudburst finish, taken on March 2, 2017.
Detail of the headstock and Wilkinson WJ07 E-Z Lok tuners on a Fret-King Corona Fluence electric guitar with an Original Classic Burst finish, taken...
Detail of the Grover Super Rotomatic Imperial tuners on a Teye Super Coyote electric guitar, taken on December 5, 2016.
Detail of the headstock and Gotoh Magnum Lock tuners on a Patrick James Eggle The 96 Carved Top electric guitar, taken on December 1, 2016.
Detail of the headstock on a Fender American Professional Series Stratocaster HH Shawbucker electric guitar, taken on November 29, 2016.
Mahsa Vahdat, an Iranian traditional singer and musician, helps her husband Atabak Younesi tune his instrument at their Tehran residence, 10th March...
Detail of the headstock and Kluson Revolution tuners on a Vanquish Heritage Custom electric guitar, taken on August 26, 2016.
Detail of the headstock and gold tuners on a Sigma DMC 4-E electro-acoustic guitar, taken on January 17, 2017.
Detail of the headstock on a C.F. Martin and Co. DR Centennial acoustic guitar, taken on December 14, 2016.
Detail of the headstock on a C.F. Martin and Co. DR Centennial acoustic guitar, taken on December 14, 2016.
Detail of the headstock on an Alvarez AFA 1965 Anniversary Series acoustic guitar, taken on October 25, 2016.
Detail of the headstock and Grover tuners on a Gibson ES-335 Premiere Figured electric guitar, taken on July 20, 2016.
Group of musical equipment, including a Positive Grid Bias Head amplifier, Sonuus G2M V3 audio-to-MIDI converter, Roadie Tuner, UAD/Softube, Sonuus...
Detail of the Kluson Deluxe tuners on an Axl USA Bel Air electric guitar with an Orange Sparkle finish, taken on December 16, 2016.