An acoustic guitar is a guitar that uses only an acoustic sound board. The air in this cavity resonates with the vibrational modes of the string and at low frequencies, which depend on the size of the box, the chamber acts like a Helmholtz resonator, increasing or decreasing the volume of the sound again depending on whether the air in the box is moving in phase or out of phase with the strings. When in phase, the sound is increased by about 3 decibels and when in opposing phase, it is decreased about 3 decibels. As a Helmholtz resonator, the air at the opening is vibrating in or out of phase with the air in the box and in or out of phase with the strings. These resonance interactions attenuate or amplify the sound at different frequencies, boosting or damping various harmonic tones. Also, the air in the box is coupled to the resonance of the top plate. Together, this causes further interaction. The back of the guitar will also vibrate to a lesser extent, driven by the air in the cavity. Some sound is ultimately projected through the sound hole (some variants of the acoustic guitar omit this hole, or have Failed to parse (Missing texvc executable; please see math/README to configure.): f

Andy McKee (born April 4, 1979, in Topeka, Kansas) is an American fingerstyle guitar player, currently signed to the American record label Razor & Tie.

His style of playing and his compositions have earned him a considerable international fanbase. In late 2006, a live performance of his signature song "Drifting" became a Featured Video on YouTube and MySpace, achieving over 48 million views on the former to date and remaining one of its highest-rated music clips. A handful of McKee's other songs have experienced notable success on YouTube, such as "Rylynn" with over 22 million views. Similarly, McKee's cover of "Africa" reached over 9 million views before suddenly being removed by Candyrat Records.

McKee played his first guitar, an Aria nylon string bought by his father, at age 13. Initially underwhelmed by his guitar lessons, McKee's electric guitar-playing cousin inspired him to continue learning, taking him out for his 16th birthday to see a guitarist named Preston Reed perform live at a clinic. McKee later bought an instructional videotape from Reed and began to learn more complex guitar techniques from it, also earning his GED that year in order to quit attending high school. He began to draw influence from guitarists such as Michael Hedges, Billy McLaughlin, Pat Kirtley, and from Passion Session by Don Ross, as he continued studying the instrument on his own.

Edward Christopher "Ed" Sheeran (born 17 February 1991) is an English singer-songwriter who is currently signed to Asylum / Atlantic Records. Sheeran broke through commercially in June 2011, when his debut single "The A Team" debuted at number 3 on the UK chart.

Sheeran was born in Halifax, West Yorkshire to Irish and English parents, before moving to Framlingham, Suffolk; he is a cousin of TV journalist and presenter Gordon Burns. He learned guitar at a very young age, and began writing songs during his time at Thomas Mills High School in Framlingham. His early childhood memories, referred to in a interview on the Zane Lowe show, included listening to Van Morrison on his countless trips to London with his parents and going to an intimate gig with Damien Rice in Ireland when he was 11. He also opened for Nizlopi in Norwich in April 2008 after being one of their guitar technicians. Sheeran began recording in 2005, which led to the release of his first EP, The Orange Room EP. Sheeran also released 2 albums, a self-titled one in 2006 and Want Some? in 2007. He moved to London in 2008 to play gigs, starting off in very small venues, playing every day, to as little as five people. In 2008, he auditioned for the ITV series Britannia High.

The Basics ( /ˈbæzɪtʃ/ BAZZ-ich) are a three-piece band from Melbourne, Australia, formed by Wally De Backer and Kris Schroeder in 2002. Their style has been described as anything from 'indie-pop' to 'rock'n'roll' to 'pop-rock', though their records show they span a wide range of genres, including reggae, ska, country, and electro-pop. They are "recognised as one of Australia's hardest-working bands".

With close to 1000 shows in their ten-year career, their live performances are well-known for their sense of humour and energy.

The Basics were formed after Kris met Wally at a party in Melbourne. The event was to see off the young aspiring producer, who was about to depart for Los Angeles, and together with a number of musician friends, the two jammed on some blues-rock standards. Later that night, they bonded over a mutual love of The Beatles, 70s and 80s cartoon theme songs and old Sierra adventure games.

Initially, they played around Melbourne as an acoustic guitar/drums combo, starting at The Opposition in Frankston and the House of Fools in Footscray, where in late 2002 they met Michael Hubbard and later invited him to join them on electric guitar. Though lacking any real experience with the instrument, Kris willingly purchased his first bass guitar, and the trio was born. During this time, the group start performing songs with more complicated three-part harmony.

Joe Bonamassa (born May 8, 1977) is an American blues rock guitarist and singer. He began his career playing guitar in the band Bloodline, which featured the offspring of several famous musicians (such as Miles Davis, Robby Krieger and Berry Oakley of The Allman Brothers Band). He released his first solo album A New Day Yesterday in 2000, and has since released nine more solo studio albums, four live albums and three live DVDs, along with two albums with the band Black Country Communion and one album in collaboration with vocalist Beth Hart. He tours the world regularly, and has developed a large following in the U.K. especially. His most recent album, Driving Towards The Daylight, reached #2 on the U.K. Top 40 Albums Chart, and he completed an arena tour there in 2012. In 2009 he was the recipient of the Classic Rock Magazine "Breakthrough Artist of the Year" award, and The Guardian said of him: "the 32-year-old from upstate New York has consolidated a reputation as the pre-eminent blues-rock guitarist of his generation".