Conventionally, guitarists double notes in a chord to increase its volume, an important technique for players without amplification; doubling notes and changing the order of notes also changes the timbre of chords. It can make a possible a "chord" which is composed of the all same note on different strings. Many chords can be played with the same notes in more than one place on the fretboard.
The two most common types of acoustic guitar are the steel-string guitar and the classical guitar. The classical guitar, also known as the Spanish guitar, usually uses nylon strings. Steel-string guitars originated in the United States and are also referred to as western guitar and folk guitar. Steel-string guitars sound louder and brighter than classical guitars, which have a warmer, mellower sound. Steel-string models usually have larger bodies and narrower necks, and they often have a pickguard to protect the body against scratches by picks and fingernails. Most acoustic guitars have six strings, but there are also 12-string versions. When an acoustic guitar is hooked up to an amplifier, it is referred to as acoustic/electric. Some acoustic/electric guitars incorporate a cutaway design, which makes it easier for electric guitar players to cross over to acoustic.
I use this book in my Music Therapy sessions with Geriatric clients--and they love it! The songs are well-known and fun--mostly folk tunes like I've Been Working on the Railroad and My Bonnie Lies Over the Ocean. Chords are SO simple--no bar chords (so you may need a capo to adjust the key). If you're looking for the most basic way to play favorite songs...this is the way to go!
As stated above, construction has just as much of an impact on a guitar’s tone as material. The factors that make up construction are as follows: gauge, string core, winding type, and string coating. And while these factors are all important, keep in mind that different companies use different approaches to all of them. So never be afraid to try out a variety brands, because while the strings may look the same you will get a different response.
The neck joint or heel is the point at which the neck is either bolted or glued to the body of the guitar. Almost all acoustic steel-string guitars, with the primary exception of Taylors, have glued (otherwise known as set) necks, while electric guitars are constructed using both types. Most classical guitars have a neck and headblock carved from one piece of wood, known as a "Spanish heel." Commonly used set neck joints include mortise and tenon joints (such as those used by C. F. Martin & Co.), dovetail joints (also used by C. F. Martin on the D-28 and similar models) and Spanish heel neck joints, which are named after the shoe they resemble and commonly found in classical guitars. All three types offer stability.

While the free guitar lessons here will help you get started, we always recommend committed students to invest in their guitar skills by starting a Guitareo membership. That’s where you’ll get a more comprehensive library of step-by-step video lessons so you always know exactly what to learn next, play-along songs so you can apply your skills to real music, and community support so you’ll get all of your questions answered. Click here to learn more about Guitareo.

Once you've got your categories narrowed down, then you can start getting into the nitty-gritty differences between strings. For instance, electric guitars will give you the choice between nickel (for authentic vintage sound) and stainless steel (for maximum durability). Some string manufacturers have exotic material options with their own unique characteristics, like Ernie Ball's Slinky Cobalt strings. With so many subtle differences separating guitar strings, you owe it to yourself to browse carefully and look at all the choices on the table before making a decision.
Through School of Rock's private guitar lessons and group rehearsals, children learn to play the guitar and eventually perform the songs they love in a fun, supportive and comfortable atmosphere. Based on the student's age and skill level, guitar lessons for kids are part of every School of Rock music program including Rookies, Rock 101, Performance, House Band, and AllStars.

Learn a D major. This chord only requires the bottom four strings. Place your index finger on the 3rd string, 2nd fret. Your ring finger then goes on the 2nd string, 3rd fret, and your middle finger is the 1st string, second fret. You'll form a little triangle shape. Only strum these three strings and the 4th string -- the open D -- to sound out the chord.

While four years old is a little young for formal guitar lessons, it's not too early to begin teaching your child musical concepts that will be important once they are old enough for guitar instruction at School of Rock. Your 4-year-old can participate in the Little Wing music program to learn fundamental concepts through fun, dynamic musical activities. 
The horizontal lines represent the frets on the guitar and the vertical lines represent the strings. The numbers listed let you know what fret number it is referring too. If there is an X it means don't play that string and if there is a 0 it means to play that string but do not press down on it anywhere. The black circles show you where to press down.
School of Rock's highly-trained guitar instructors are experts when it comes to inspiring teens to learn to play the guitar like a pro. Our proven formula for learning to play the guitar effectively and quickly starts with private guitar lessons plus group rehearsals in a safe and friendly environment. All teens are enrolled in or audition for one of the following programs: Rock 101, Performance, House Band, and AllStars.
Students can earn a Certificate in MI’s Performance Studies program for Guitar. With an innovative 360-degree approach to music education, MI Certificates are centered on Harmony, Theory and Ear Training, with core subjects in Reading, Technique and Performance. This Certificate program provides students with a broad foundation of knowledge and practical experience, encouraging the rapid development of skills in preparation for a range of professional music performance situations.