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To avoid some confusion for beginner musicians, let’s clear up a few things:

  • The Major Scale is all important, but you don’t necessarily have to spend hours practicing it, because that’s just boring
  • When someone uses the term “fourth” or “fifth” or “third”, these terms do not refer to any kind of fraction. They are referring to the first, second, third, fourth, fifth etc… steps of the major scale
  • A major third is the third note of a major scale.
  • A minor third is the third note of a minor scale, which is the major third flattened
  • Flat means down by one semitone (or fret) – The symbol is similar to “b”
  • Sharp means up by one semitone (or one fret) – The symbol is similar to “#”
  • A major seventh chord is simply a major chord (1st, 3rd and 5th) with the seventh note included, so simply play the following notes of your major scale together: 1, 3, 5, 7
  • In guitar chord notation, C means play a C major chord. Cm means play a C minor chord. C/G means play a C major chord, but use a G as the lowest note.
  • Tempo is the speed of a song, normally define in BPM – beats per minute
  • Common time = 4/4 = 4 beats per bar. 3/4 = a waltz. The first number means the number of beats per bar. The second number is the length of the note compared to a semibreve
  • A semibreve is one whole bar in common time. A breve would be two whole bars. Two whole bars could well be a sensible definition of a phrase, but this is not by any means strict or necessary or actually defined anywhere else as far as I know.
  • There are seven musical modes, also called “church modes”, but that are named after ancient Greek regions or tribes. There is an excellent wikipedia article on this subject
  • Each mode can be figured out and played using a particular major scale as demonstrated in the interactive circle of fifths
  • To be continued…..

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OK, I’m not writing an article on the hypothetical theory trying to unite quantum mechanics and general relativity.

What I am going to try and explain to you, and for my own benefit, is how the length of a string is related to the note it produces when plucked, as well as the importance of it’s harmonic overtones

  • A string of a particular length and a particular tension will vibrate at a particular frequency. This is the frequency of the note produced
  • Dividing the length of this string exactly in half will halve the wavelength. This means that it also doubles the frequency.
  • Doubling the frequency (or halving the wavelength) will give you the same note one octave up
  • This string will also produce a number of “overtones”, that can be isolated by playing the harmonics
  • The harmonics are located at particular points of the string: 1/2, 1/3, 1/4, 1/5 etc… of the way up. Check out this really useful reference poster and article from wikipedia: Table of HarmonicsHarmonic Series
  • The strongest harmonics are at 1/2, 1/3 and 1/4 up the string. These are on the 12th fret (double dot on a guitar), 7th Fret and 5th fret respectively
  • These harmonics produce notes one octave up, and octave plus a perfect fifth, and then two octaves up from the fundamental note of the open string
  • Fretting these positions give you one octave up, a perfect fifth and a perfect fourth
  • Playing the chords on these frets that are appropriate for the key in question (i.e. the major key of the fundamental note of the open string) will give you the three most popular chords in music. So if we’re looking at the E string of a guitar, this will generate an Emajor, an Amajor and a Bmajor. For the A string, it will give you A, D and E.

Anyway, enough rabbiting on for now. I’ll write some more when I get the time / inspiration.

Keep practicing.

Stages of Mastering the Guitar

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