How come we squish everything into one octave?



Asked by: Stephen Hale

There’s no “squishing” — an “octave” is just the difference between one note and another note with double the frequency of the first note. For example, the octave of A with frequency of 440Hz is another A with a frequency of 880Hz.

Why are there only 7 notes in an octave?





The tradition from which western music derives began with filling in the most obvious stopping places in one octave. And if you go by that process it’s easy to end up with seven, but no more. The next pitch is called the octave because it’s the eighth note (just as an octopus has eight legs).

Is an octave a perfect?

In music theory, the octave is an interval that has twelve half steps. Octave can only be perfect, it cannot be major, minor, diminished, augmented. The octave requires that: The interval must be an octave interval (8 note names between the first and the last).

What does it mean to change an octave?

An octave is the distance from one note with a particular letter name to the next occurrence of that same letter names note on the keyboard.

Can you spot an octave?

The interval that works to find the octave note for the open string works for fretted notes as well. Simply move down 12 frets on the same string to find the next higher octave note. For example, you’ll find a G on the 3rd fret of the 6th string. There’s also a G, one octave higher, on the 15th fret of the 6th string.

Why is there no E Sharp?





Where is E or B Sharp? There is no definitive reason why our current music notation system is designed as it is today with no B or E sharp, but one likely reason is due to the way western music notation evolved with only 7 different notes in a scale even though there are 12 total semitones.

Why do musical notes end at G?

It's just a vibration of air at a fixed frequency measured in hertz.

Are there 12 notes in an octave?

In the western musical scale, there are 12 notes in every octave. These notes are evenly distributed (geometrically), so the next note above A, which is B flat, has frequency 440 × β where β is the twelfth root of two, or approximately 1.0595. The next note above B flat, which is B, has frequency 440 × β 2.

What is the 5th octave?

The octave of the fifth is the twelfth. A perfect fifth is at the start of “Twinkle, Twinkle, Little Star”; the pitch of the first “twinkle” is the root note and pitch of the second “twinkle” is a perfect fifth above it.

Why is the 4th and 5th perfect?

The 4th, 5th, and octave above a tonic are the tonal degrees they determine the tonal center. These tonal degrees are qualified with perfect, diminished, augmented.



Why is there no minor fifth?

It cannot be because they are the same in both major and minor scales, for the second is also the same and it is not considered a perfect interval. If it is pointed out that minor seconds also occur in the scales, I would reply that a diminished fifth also occurs.

Is there such thing as a major 5th?

One tick clockwise is G major—and the notes in a G major chord are seven semitones away from the notes in a C major chord. However, we can also say that G major is the fifth chord derived from a C major scale, so it is “a perfect fifth away” from C.

What is the fifth of D?

5th intervals above note D



Short Medium Intervals ‘above’ statement
d5 dim5 The D to Ab interval is diminished 5th
P5 perf5 The D to A interval is perfect 5th
A5 aug5 The D to A# interval is augmented 5th


Why is F sharp in ad chord?

D/F# and D/A are the first and second inversions of the D major. This means that the bass tone is shifting from D to F sharp or A. Both these chords are also referred to as slash chords.

Why does a perfect fifth sound good?

the perfect fifth is a result of the nicest ratio of LENGTH of strings that Pythagoras the mathematician found. So octave was 1/2, and perfect fifth was 2/3 of the length of the string. He found that after the octave the perfect fifth was most consonant sounding.