In music, a guitar chord is a set of notes played on a guitar. A chord's notes are often played simultaneously, but they can be played sequentially in an arpeggio. The implementation of guitar chords depends on the guitar tuning. Most guitars used in popular music have six strings with the "standard" tuning of the Spanish classical-guitar, namely E-A-D-G-B-E' (from the lowest pitched string to the highest); in standard tuning, the intervals present among adjacent strings are perfect fourths except for the major third (G,B). Standard tuning requires four chord-shapes for the major triads.
First, you need to determine what type of guitar you have - acoustic nylon, acoustic steel string, or electric. You want to be sure to use the correct strings for your particular guitar. Acoustic guitars that require nylon strings, such as classical, flamenco and some folk guitars, generally have lighter tops, or soundboards, with less internal bracing than those found on steel-string acoustics, and stand the risk of serious damage if fitted with steel strings. Steel-string acoustics are designed to withstand the added stress that steel strings exert on the top, bridge, nut and neck, and won't sound very good with nylon strings, if they even fit. Electric guitar strings must be made of ferromagnetic metals like steel and nickel, so they can interact with the magnetic pickups, while acoustic-electric guitars typically use a different type of pickup which senses vibrations from the bridge, so acoustic strings may just have a steel core wound with a phosphor bronze alloy wrap for bright tone. Guitars with whammy bars might require a few extra steps to keep everything stable, so check your manufacturer's instructions or look for online videos.

All three principal types of resonator guitars were invented by the Slovak-American John Dopyera (1893–1988) for the National and Dobro (Dopyera Brothers) companies. Similar to the flat top guitar in appearance, but with a body that may be made of brass, nickel-silver, or steel as well as wood, the sound of the resonator guitar is produced by one or more aluminum resonator cones mounted in the middle of the top. The physical principle of the guitar is therefore similar to the loudspeaker.

As with most chords in this list, a clear G major chord depends on curling your first finger so the open fourth string rings clearly. Strum all six strings. Sometimes, it makes sense to play a G major chord using your third finger on the sixth string, your second finger on the fifth string, and your fourth (pinky) finger on the first string. This fingering makes the move to a C major chord much easier.

On the other hand, some chords are more difficult to play in a regular tuning than in standard tuning. It can be difficult to play conventional chords especially in augmented-fourths tuning and all-fifths tuning,[20] in which the large spacings require hand stretching. Some chords, which are conventional in folk music, are difficult to play even in all-fourths and major-thirds tunings, which do not require more hand-stretching than standard tuning.[21]
Ernie Ball is the world's leading manufacturer of premium electric, acoustic, and classical guitar strings, bass strings, mandolin, banjo, pedal steel strings and guitar accessories. Our strings have been played on many of the best-selling albums of all time and are used by some of history’s greatest musicians including Paul McCartney, Eric Clapton, Jimmy Page, Slash, The Rolling Stones, Angus Young, Eagles, Jeff Beck, Pete Townshend, Aerosmith, Metallica, and more.
So with that in mind, would you like to learn the guitar on your own or with others? The choice is yours at Guitar Center. If you prefer one-on-one instruction, that's absolutely doable - in fact, you'll find our schedule to be very flexible. Of course, learning in a group is an excellent way to meet like-minded musicians with similar tastes and share ideas on how to improve one another's craft. Who knows, you might even leave a group guitar lesson with plans to start a band with your newfound musical companions. Either way, our group and private guitar lessons are very entertaining and informative.
"With a note of music, one strikes the fundamental, and, in addition to the root note, other notes are generated: these are the harmonic series.... As one fundamental note contains within it other notes in the octave, two fundamentals produce a remarkable array of harmonics, and the number of possible combinations between all the notes increases phenomenally. With a triad, affairs stand a good chance of getting severely out of hand."
SFCM produces some of the most successful and influential classical guitarists in the world. Spearheaded by renowned faculty and complemented by visiting artists such as Marcin Dylla, the department honors the tradition of the classical guitar while cultivating innovation. The Harris Guitar Collection, housed at SFCM, gives students a chance to see—and play—some of the most extraordinary guitars of the last two centuries.