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Author Archives: Brian
Tuning as an approximation
Previously, we said that the notes written on the staff were approximations of the pitches of the harmonics. But what kind of sense does that make? Intervals and ratios Let’s look at the picture we had indicating harmonics, their frequency … Continue reading
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Overtones and harmonics
We have discussed the circle of fifths as a way in which the various pitches, major keys, and minor keys can all be arranged in a circle. But certainly there must be something else special about the interval of a … Continue reading
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Key signatures
Understanding key signatures Once you have the major keys arranged in the circle of fifths, and you know why they only go around the circle seven steps either way, so they have up to seven flats or seven sharps, it’s … Continue reading
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Notes on the staff
The time has finally come to show some notes on a musical staff. The scheme is rather straightforward. The notes on the staff follow the white keys on the piano keyboard. Each successive white key goes up half of a … Continue reading
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More about the Circle of Fifths
Now we can explain why the circle of fifths looks the way it does. Recall that we had an ambiguous area from 5 o’clock to 7 o’clock: We’re going to examine the circle of fifths in terms of major scales. To … Continue reading
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The Circle of Fifths
A review Previously we discussed a clock in which the numbers going clockwise from the 12 o’clock position went up by sevens. Of course, we want to keep the numbers between 1 and 12, so when the number gets larger … Continue reading
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Half steps and clocks
Up to six hours at a time Suppose I have a clock and it reads 12 o’clock. If I set the clock forward one hour, then it will say 1 o’clock. If I do it again, the clock will say 2 … Continue reading
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Intervals fully named
Previously we named intervals using the numeric portion of their names, and we introduced scientific pitch notation. Now we’re going to finish the job by using the full designation of each interval. To make sense of what follows, you’ll need to know … Continue reading
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Intervals, inversions, and half steps
Octave numbering The scientific pitch notation system assigns a number to each octave. The numbers go up as the octaves go higher. For example, the note C4 is an octave higher than C3, which in turn is an octave higher than … Continue reading
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Intervals and the rule of nine
Recall that the letter names of the white keys on a keyboard cycle through the letters A, B, C, D, E, F, G, and then back to A, like this: So what are we talking about when we’re speaking of … Continue reading
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