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As titled, say,

When humming along with a piece of music, you will probably sing with sofa names without knowing the key signature of it, like Birthday song: 556517, 556521, 5553176, 443121...

My question is, why we could identify the sofa name "Do" after listening to a piece of music, event if just part of it or a few sentences

What is the secret behind our ear? How this system works?

Thanks in advance

marked as duplicate by ex nihilo, ttw, Richard, Doktor Mayhem Jan 12 at 19:04

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  • Can you clarify what you mean. We don't need to identify key to sing along, and what do you mean by center in this context? You could make your 5 be "Do" here if you want, or your 1. – Doktor Mayhem Dec 31 '18 at 15:31
  • @DoktorMayhem - Interesting, but I can't make it work with 5 being Do. Unless it's in Mixolydian mode..! I think if listeners didn't know where do was, not knowing what letter it was doesn't matter, music wouldn't make a lot of sense. We need do, or 'home' - it's pivotal to how a piece works, isn't it? I think most people would know when a piece has 'come to rest' - with general Western music. And there's do - even for those who don't understand tonic sofas! – Tim Dec 31 '18 at 15:43
  • @DoktorMayhem Of course, we could make 5 be "Do" here. But the singing seems a little bit NOT INTUITIVE (unnatural / hard). Making 5 as "Do", the Birthday song would be like "112143,112165,1116432,b7b76454", which is not what we usually do. And by "center", I mean a "suitable Do" singing with sofa names in a more comfortable way – Ace Jan 1 at 5:26
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  • Happy birthday can be also be defined by the length of the notes, while “der Mond ist aufegangen” is ambiguous: doredofami re do ... could as well be : solasoti la sol. Btw. The reason “why” is not answered in the other question. – Albrecht Hügli Mar 9 at 8:30

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