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Same note, many places
One more look at what you missed.
Two Cs, far apart.
One is clearly higher, and yet they sound like the same note. Play them one by one, then together.
No sound? Check your volume, and that your phone is not on silent.
From one C to the next C is an octave.
An octave is twelve semitones. The higher note shakes exactly twice as fast, which is why the two blend and share a name.
Same note an octave apart, or two different notes?
A piano repeats the same twelve keys, octave after octave.
Every note has one key in each octave. Move one group of twelve to the right and you meet it again.
Play a key, then the same key one octave up.
Look for the same spot in the next group of black keys. Then play the two together.
Same note an octave apart, or two different notes?
On a guitar, the same note sits on more than one string.
Its strings overlap in range, so a note on one string can often be played on the next string too. Any of those places is right.
Any key with the right name counts, in either octave.
You know what an octave is.
What you learned
- An octave is twelve semitones: the same note, higher.
- A piano repeats its twelve keys, so a note has one key per octave.
- On a guitar the strings overlap, so one note has several right places.
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