Unlike the piano, the guitar has the same notes on different strings. Consequently, guitar players often double notes in chord, so increasing the volume of sound. Doubled notes also changes the chordal timbre: Having different "string widths, tensions and tunings, the doubled notes reinforce each other, like the doubled strings of a twelve-string guitar add chorusing and depth".[38] Notes can be doubled at identical pitches or in different octaves. For triadic chords, doubling the third interval, which is either a major third or a minor third, clarifies whether the chord is major or minor.[39]
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.
The Master of Music in Performance (Guitar) from Musicians Institute combines advanced performance training with additional study in both traditional and contemporary disciplines such as music history, theory, education, research skills, recording technology, production, business relations and online brand management, taking your guitar skills to the highest level.
I think for all parties, if we had the ability to send a "two day backstage pass" (you can use that), where we can send a friend a link and they could try the sight for free but couldn't submit videos. I have a few friends that I keep trying to sell them on but they just are not totally sold and I think it's because the beauty of this site is the personalized VE's are. The interaction between student and teacher is what really makes this magical and it's really hard to describe. The search feature could be a little better, more precise and sometimes it finds no VE hits on simple searches like street. Otherwise I am one of your biggest fans.
We believe that music is a social activity so we present students with numerous opportunities to interact with each other. Each year we hold multiple recitals which offer a low-pressure opportunity to perform in front of an audience with other like-minded music students.  In addition to recitals, students frequently go out into the community to perform outreach concerts at local hospitals, schools, and nursing homes. Students also have the option to join group classes at our Santa Clara location. This offers students a chance to perform for each other more frequently, as well as join on our many performance ensembles. 
Unlike many string instruments which use a bow to create a sound, guitars are played by plucking or strumming the strings on the instrument, which vibrate to create a sound. Chords are played when the guitarist holds their fingers down on more than one individual string to change its length, which in turn changes the frequency of the vibration created - in other words, it creates a different note. Performers often use guitar tabs, rather than sheet music, when learning music: this acts as a kind of 'map' to teach guitarists where to put their fingers on the strings.