![]() So the step between F and G is either F# or Gb, but whatever it's called, it is in fact the same note. Those blank steps are the ones that can have two different names, either "sharp" of the name below, or "flat" of the name above. These 12 notes (+ their octaves), taken together, are called the Chromatic Scale. An acoustic guitar has about 4 1/2 octaves of usable notes, an electric a little more. ![]() Look at this spiral staircase continuing up and down through three octaves to get the full picture of how notes work. The vertical distance between each step is a "semitone", or (don't let this confuse you) a "half-step". Notice that both C's are lined up in the same way, illustrating the fact they they are the same note, but one octave apart, which is represented in this analogy by the vertical distance between them. In this image, the lowest note is C (it can be any) and 12 steps later, we're back to C. The green panel encloses one octave of notes, in this case from A to A. Their names are based on the first seven letters of the alphabet: A B C D E F G and they're named from low to high. These distances between notes allow for melody and harmony and the many different qualities our ears and hearts discern when listening to music.īelow is a graphic showing showing some notes (represented by the blue ovals) rising from bass to treble. Intervals are the ruling force within the system of music.An octave is an interval a semi tone is an interval (the smallest) a whole step is an interval. The distance between any two notes is called an interval.The idea of "step" is a good analogy as notes in sequence do form a kind of staircase in pitch as illustrated below. A whole step is (obviously) two half steps, two frets. The distance in pitch between any two adjacent notes is called a semitone or half step, on a guitar: one fret. ![]() The 12 repeating notes are mere building blocks until a template is introduced, like a stack of bricks waiting for the blueprint to become a house. ![]()
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