What exactly is classical music or playing? Some keep on saying this one is classical, that one is not classical. Well, how exactly can I define what is classical or not? I love plucking and do it all the time.
A friend of mine told me that most of the time, for playing classical for string 4,5,6 I should use my thumb and for string 1,2,3 I should use the ring, middle and index finger, respectively.
Is it correct?
Your friend is oversimplifying things tremendously.
To begin with, a modern classical guitar is an acoustic guitar strung with nylon strings (in the past, they were strung with strings made from animal gut). It differs from a modern "flat-top" acoustic guitar in that flat-top's are strung with steel strings, which have a much higher tension than nylon strings. For this reason, the internal bracing of the guitars are much different as well, and their tones are quite distinct.
Both "classical" style and fingerstyle guitar playing involves plucking the strings with the fingers rather than with a pick. However, the classical style has, over time, developed a widely-accepted orthodoxy to its technique. This involves using the thumb and the first three fingers of the right hand, but not the pinky. All four fingers can be used to pluck any of the strings.
Fingerstyle playing, by contrast, is the result of folk music traditions, and has fewer commonly accepted "rules". There are sub-genres of fingerstyle, such as Travis picking, in which the thumb plays the bass notes and the fingers play the melody strings, but even there there is no general agreement on how many fingers to use. I use the first three fingers, for example, while Doc Watson uses only his index finger. Modern fingerstylists will do whatever they can to extract sound out of the instrument, including tapping the fingerboard, striking the strings or the body for percussive sounds, etc.
Generally speaking, you can play either style on either kind of instrument. Chet Atkins, for example, played fingerstyle but often using a classical guitar. Some classical techniques don't work as well on steel string instruments, and vice versa, but for the most part you can use either style with either instrument.
I don't think this is what you're really asking about, but here's a brief definition: Classical music is music from or based on the European art music tradition. This stretches back many centuries, to Gregorian chants and before, and has evolved through many different significant "periods" (such as the Baroque, Classical, Romantic, etc.) to the present day.
Classical music is not to be confused with the Classical Period of music history. The Classical Period refers to the style best exemplified by Haydn, Mozart, and early Beethoven, and comprises at most about a fifty-year period of music history. It is just one of many periods in classical music.
Classical music is distinct from, say, Jazz or Blues in that, for the most part, it lacks much, if any, African influence on its sound. This has changed somewhat in the last century or so, but such exceptions represent a small portion of the overall classical tradition.
Strictly speaking the classical period was between 1750 - 1830 ish. Some well known classical composers were Mozart and Beethoven.
However the term classical is often used to refer to music that is not popular music (rock/pop/jazz/reggae etc) and is played on classical (orchestral) instruments.
Refering to guitars a Classical guitar is a nylon strung acoustic guitar. The neck is usually flatter and wider than a steel strung acoustic guitar. It is usually played using a fingerstyle or "plucking" technique like you describe.
The fingerpicking technique you have described is a great way to get started and is the one I teach to people new to playing this style of guitar.
As the guys note. In regards to "classical guitar", there is an accepted method for playing "classical" guitar that has been refined considerably, with Segovia being likely the prime mover. Techniques of playing, fingering, holding the guitar, etc. are all very much standardized and would be expected from someone wanting to play in this style with other similarly-trained musicians. Even altering the indicated fingerings for passages can bring sharp looks of annoyance...
However, if you just want to play fingerstyle on a classical guitar, you can do whatever you like. Any number of jazz fingerstyle players use the classical instrument; Joe Pass for one.
There are generally three things that distinguish classical guitar from other styles of guitar... the instrument, the playing style and the music.
The instrument: Classical guitarists always play on a particular type of guitar, with nylon strings, a hollow body, a rosette around the sound hole, and other distinctive features.
The playing style: classical guitarists have a very particular playing technique. This involves using a guitar support (such as a foot stool), plucking the strings with the thumb, index, middle, and ring fingers, keeping the thumb on the back of the guitar neck at all times, and more. The example technique you gave is sometimes used by classical guitarists, but not always.
The music: Classical guitarists play a specific genre of music called "classical music." Music from this genre is always written in sheet music notation, and is performed exactly the way it is written. However, classical music can incorporate many styles, such as Jazz, Impressionism, Romanticism, etc.
As youcan see from articles such as this Wikipedia one there is a wide range of musical types which could all be lumped under 'Classical'
There are various styles of plucking and strumming, however a particular piece could be classed as 'classical' without any plucking at all.
And the traditional p,i,m,a technique is just one of a number of techniques. (P thumb, I index finger, M middle finger, A ring finger - which always concerned me as there wasn't a common letter for the little finger :-)
So - broadly correct, yes, but only as a subset of a much wider range of techniques. The Wikipedia article on it is actually pretty good.
You can look at this in purely economic terms, not in terms of the styles of music.
There are three kinds of music, divided on economic lines: folk music, classical (or traditional) music, and commercial music.
Folk music is music written and played by people who have no expectation of earning any money from it. It is performed informally.
Classical music (a better term is traditional music) relies on patronage; the composers write the music because they are paid by wealthy sponsors, people or institutions who want the music. Individual musicians who play classical music can get paid, but the key to classical music productions is that they are not designed to earn any money--in fact they lose money, and the difference is made up by wealthy patrons.
Commercial music is a phenomenon of the 20th century, and is now in decline. Commercial music is whenever anybody writes, records, and performs music with the expectation of selling it and earning a profit from it, within a music industry that seeks to earn a profit overall even if individual commercial music projects may not earn money.
If you think about any music you've heard or played, and think about when it was first written and why, you'll see that most everything falls easily into one of these three categories. It also explains how "classical" music is different from other kinds of music, irrespective of cultural labels.
