That crowd was certainly more sophisticated than i am.Ĭharlie claimed you could tune a piano with one tuning fork and the 12th root of 2 by counting the beat frequencies to get your first octave.Īs i said, i learn from most everybody i meet. My mentor 'Charlie' told me that Bach was "The Mathematician of Music" who figured that out.īach reckoned that if you tuned a harpischord even tempered you could play in different keys without re-tuning it, wrote a piece of music to demonstrate that, performed it and brought roars of approval from the crowd. For example, the following commands define the right hand side function for an interesting pair of nonlinear differential equations. I do recall once, when those Hewlett Packard calculators were new, comparing-twelfth-root-of-two frequencies to other music scale frequency integer ratios like 6::5, 7::6, etc and seeing that they could indeed be mighty close. Wikipedia shows 12 keys per octave on a Steinway Grand - i guess that's standard? Hmmm i wonder how they decided to have seven notes.Īnd i just googled "piano keyboard octave". That would sure explain the name "octave". So Sophi is right, with seven notes the eighth one would be an octave away? Anyway, use of these "heptatonic" scales is very common, which relates to why an interval over which the frequency is doubled/halved is called an octave. """These notes may have some notable harmonic properties. Dishwasher motor burned up, washiing machine door froze up, and microwave put on a pyrotechnic display complete with yellow belching flames. one of these two notes, esp the one of higher pitch (as modifier) an octave leap See also perfect (def. Had a rough week recently, a "revolt of the machines'. British Dictionary definitions for octave the interval between two musical notes one of which has twice the pitch of the other and lies eight notes away from it. In between carburetors and household maintenance, that is. Now that i'm retired have more time for such adventures.
It helps cement in a feeling for what the originators were thinking.
I always like to look up etymology of terms. "when the student is ready a teacher will appear" So i put out what i'd read, figuring i'd likely get enlightened further by somebody with knowledge of music science. I think math of vibrating strings (frequency) wasn't figured out until Newton's time but i could be wrong. That's why i googled 'octave entymology', to see why an 'octave' isn't instead called a doubling or a twelv-ing, and found to my surprise it goes back to Latin and days of the week. I do understand that we use twelfth root of two as ratio between adjacent notes(?right term?) in Bach's even tempered scale so i figured maybe there's twelve intervals - i dont know. ""Doesn't "octave" (in music) just relate to the eight intervals in a normal scale, before it repeats? "" So doubtless the notes were recognized as being an iterative, repeating pattern long before the advent of frequency counters.ĭoesn't "octave" (in music) just relate to the eight intervals in a normal scale, before it repeats?ĭecade,on the other hand, relates to a ratio of ten. Yesterday's epiphany was 65 Chevy carburetor idle circuit. Thanks guys, i learned something - and that's my daily goal. So, in our context an octave is a frequency ratio of 2 or 1/2 not eight like the name implies.Ħdb/octave is 20db/decade - i remember a test question(over forty years ago) was to prove that.īut it's the order of the filter that sets the slope. So doubtless musical notes were recognized as being an iterative, repeating pattern long before the advent of frequency counters. There's something in our hearing neurology that attunes us to harmonics in sound It was also interesting to google "octave define" So the root thought is same location in next iteration of a repeating pattern (hangovers lasted that long back then?)Įighth day after is same day of following week Middle Latin, eighth day after a festival.
It was interesting to google "octave etymology" "8")."can we step back and have someone clearly define an "octave"? "
Ottavas can be customized just like any other line. Apply an octave lineĪnd to adjust the vertical position, see Lines: Adjust vertical position. MuseScore automatically adjusts playback of the score under the ottava to the correct pitch. 1 15ma alta (2 octaves above) and 15ma bassa (2 octaves below) are also occasionally used. Ottavas are available in the Lines palette of the Basic and Advanced workspaces.Ĩ─────┐or 8va─────┐: Play one octave above written pitchĨ─────┘or 8va─────┘: Play one octave below written pitchĨva alta/bassa lines are particularly common in piano scores, though they are sometimes used in other instrumental music. Octave (Ottava) lines are used to indicate that a section of music is to be played one or more octaves above or below written pitch: The line may be dotted or solid.
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