Guitar chord in the abstract musical-theory of chords for all instruments. For example, in the guitar (like other stringed instruments but unlike the piano), open-string notes are not fretted and so require less hand-motion. Thus chords that contain open notes are more easily played and hence more frequently played in popular music, such as folk music. Many of the most popular tunings—standard tuning, open tunings, and new standard tuning—are rich in the open notes used by popular chords. Open tunings allow major triads to be played by barring one fret with only one finger, using the finger like a capo. On guitars
Chicago Musical Instruments Chicago Musical Instruments Chicago Musical Instruments Co. (CMI) was a musical instrument distributor, which at times had controlling interests in Gibson Guitars (1944 to 1969), Standel, Lowrey, F. E. Olds (brass instruments), William Lewis & Son Co. (stringed instruments), Krauth & Beninghoften, L.D. Heater Music Company, Epiphone Guitars, Selmer UK, and other musical instrument brands. CMI was established in 1920 by Maurice H. Berlin, founder and president. In 1944, CMI took over controlling interests and marketing of the Gibson Guitar Company, then known as Gibson Inc. CMI expanded Gibson's Kalamazoo, MI, plant at 225 Parsons Street by 15,000 square feet