Eli5: how do people hear musical notes?

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I have no musical knowledge so bear with me.

How can people hear a note played or a word sung and this to themselves “oh that’s an A flat” or something along those lines. Or how can they identify that they are not singing the right note and know how to modify it to get to the correct one?

What about tuning instruments. How can someone do that by ear and just know that it’s in tune?

The mind boggles!

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23 Answers

Anonymous 0 Comments

For most people it’s just practice. If I played the lowest and highest note on the piano, you’d know the difference. I could then tell you that the low note is called A0 (A note, zero octave). Then I could tell you the highest note is called C8 (C note, eight octave).

I could add the exact middle note and now you’d be able to recognize three notes. Keep building like that, and you’d eventually be able to name most the notes on a piano. By that point, you’ll probably start to recognize the same notes played on other instruments.

However, the ability to tell any note exactly just by hearing it is called perfect pitch, and it’s fairly uncommon. Most musicians can’t do it.

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