Inspired by the enthusiasm with which my occasional forays into musicology have been received, I thought I would attempt a bit of an overview for beginners.
Please do let me know if this comprehensible. I don't usually teach this so it may be a bit rusty.
I hope that it may be of some use. This is just a start. If it generates interest and doesn't seem too hopelessly obscure, I will carry on anon.
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MUSICOLOGY FOR BEGINNERS
You don't need to be able to play a musical instrument to understand musicology and there are many musicians who know nothing of musicology. It is a sort of science, but it is full of anomalies. Its main attraction lies in being able to recognize precisely what is going on in a piece of music.
THE NOTES
There are 12 notes in Western Music.
7 of them have one name each, 5 of them have two, depending on the context in which they are used.
The 7 with only one name are:
A, B, C, D, E, F & G
These correspond to the white notes on a piano keyboard.
The 5 with two names are:
A sharp / B flat
C sharp / D flat
D sharp / E flat
F sharp/ G flat
G sharp/ A flat
These correspond to the black notes on a piano keyboard.
It will be observed that there is no black note between B & C, or between E & F.
These 12 notes all have different pitches. The common reference point, recognized by all professional musicians in the Western tradition is Concert A which vibrates 440 times per second. This is the benchmark from which all the other notes are tuned.
Now, you may say, there are more than 12 notes on a piano keyboard (there are in fact usually 88) but once we have run through the 12 notes identified above, they are repeated an octave above or below, depending on whether you are going up or down in pitch. An octave above or below a note is the same note but vibrating exactly twice as many times, or exactly half as many times, per second.
The distance between one note and it’s immediate neighbour is called a semitone. A semitone is the smallest distance in pitch in Western music.
Examples of a semitone:
A to A sharp/ B flat.
A sharp / B flat to B
B to C. etc.
Here is a wikilink which contains a recorded example: http://en.wikipedia.org/wiki/Semitone
The distance between one note and the note two semitones above or below it is called a tone. Tone is a word that has another meaning. It also refers to the quality of the sound of a note. This can be misleading. In this context, the word tone is used to indicate a distance of two semitones.
Examples of a tone:
A to B
B to C sharp/ D flat
C to D etc.
Here is a wiki link that contains a recording of a tone: http://en.wikipedia.org/wiki/Whole_tone
THE MAJOR SCALE
The major scale is a formula of notes that is always the same. It is defined thus:
Tone – Tone – Semitone – Tone – Tone – Tone – Semitone
There are only eight notes in a major scale. The eighth is an octave above the first. The other five notes are not used.
The first note is called the root, or the tonic.
The next note is a tone above the root and is called the major 2nd, or supertonic.
The next note is a tone above the major 2nd and is called the major 3rd, or the mediant.
The next note is a semitone above the major 3rd and is called the 4th, or the sub-dominant. (Sometimes called the Perfect 4th as it is identical in both major and minor keys)
The next note is a tone above the 4th and is called the 5th, or the dominant. (Sometimes called the Perfect 5th as it is identical in both major and minor keys)
The next note is a tone above the 5th and is called the major 6th, or the sub-mediant.
The next note is a tone above the major 6th and is called the major 7th, or the leading note (because in Classical harmony it always leads up to the root note above)
The next note is a semitone above the major 7th and is an octave above the root. It is also called the tonic.
Any of the 12 notes can be the root note of a major scale but the formula of tone –tone – semitone – tone –tone –tone –semitone must always be observed otherwise it is not a major scale. The major scale is itself one of the ancient modes – it is the Ionian Mode. But later for modes!
Generally, in elementary music lessons, students are given to learn a major scale of C. This is because it involves no potentially confusing sharps or flats.
The distance between C and D is a tone, between D and E another tone, between E and F a semitone, between F and G a tone, between G and A a tone, between A and B a tone and between B and the octave C a semitone. Thus it conforms to the formula as stated.
Here is a wiki link that contains an example of a C major scale - but you need to have downloaded Audacity to play it. Wikipedia is not by any means infallible. Note that the link to what is described as an A major scale is not a major scale but an Aolian minor - of which more anon: http://en.wikipedia.org/wiki/Major_scale
