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As you move up an acoustic keyboard the strings are tightened and the frequency of the vibrations are smaller and faster and the result is a higher pitch. As you move down a keyboard the pitch gets lower. You can look closely at a guitar string and see the string vibration change in size and hear the pitch change. It's how Pythagorus studied sound.
The closest distance between any 2 notes is called a HALF STEP.
The closest distance between any 2 notes is called a HALF STEP.
Two HALF STEPS make a WHOLE STEP. The distance between Do & Re is a Whole Step.
Two HALF STEPS make a WHOLE STEP. The distance between Do & Re is a Whole Step.
On a KEYBOARD each key (of either color) is separated from the next by a HALF STEP
A Half Step could be made from a white note to a white note, but not from a black note to a black note!
In NOTATION notes are separated by lines and spaces.
It is very useful to understand and remember that the lines and spaces on a STAFF are the WHITE NOTES on a keyboard.
It is very useful to understand and remember that the lines and spaces on a STAFF are the WHITE NOTES on a keyboard.
There are keyboards where the color scheme is different. Harpsichords often have switched colors.
ACCIDENTALS
ACCIDENTALS
To represent the black notes on a Keyboard you need to use ACCIDENTALS.
To represent the black notes on a Keyboard you need to use ACCIDENTALS.
An ACCIDENTAL symbol placed before a note changes the pitch.
We still don’t know the pitches yet, but the added signs do something important.
The first sign (looks like the number sign) is a SHARP sign. Raise the pitch 1/2 step
The second, which looks like a B, is a FLAT Sign. Lowers the pitch 1/2 step
The bottom sign here is the NATURAL sign. This sign restores the note to it’s original pitch.
Using the Treble Clef sign we know the note on the second line is G.
Place a SHARP sign before the G and you raise it 1/2 step to G sharp.
The FLAT sign before the note lowers it 1/2 step.
Now it’s G flat.
If you saw a FLAT sign in front of a G, the note is now Gb. Every G after that is also Gb, unless there is a NATURAL sign placed before one, restoring the original PITCH. Starting a new measure also calls off the effect of the ACCIDENTAL.
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