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HOW DO ACCIDENTALS APPLY

Posted By: MICHAEL122

HOW DO ACCIDENTALS APPLY - 06/18/18 11:28 PM

On a grand staff; I know that a given note, let's say a "G", marked as a flat {or sharp or natural} makes all G's flat for the rest of that measure
Is this still true even if they're in a different octave and still in that same measure?
Also, are all G's flat, even if they're in a different octave, on the bass clef for that same measure?
Seems odd that my experience hasn't come across this before...
Thank you, everybody, for your responses.
Posted By: Bluejayfeather

Re: HOW DO ACCIDENTALS APPLY - 06/19/18 12:50 AM

Not 100% sure, but I'm thinking that the accidental has to be stated in each octave. Correct me if I'm wrong.
Posted By: rocket88

Re: HOW DO ACCIDENTALS APPLY - 06/19/18 01:07 AM

An accidental applies to one note and one note only: The exact note before which the accidental is marked. And it lasts until the end bar line of the measure in which it occurs.

Furthermore, it continues in that measure for any additional notes on that same space or line unless it is changed by another accidental on that exact note in that same measure.

For example, if a note is sharped, it stays sharped for that measure unless that note is made natural by a natural sign further on, again in that measure only.

Accidentals do not apply to any other note anywhere else, be it the same note, such as a G that is an octave apart, or a G on a different staff. If the composer wants any other Gs changed, each one needs its own accidental.

And, all accidentals cancel out and thus are of no effect in the next measure. The end bar line of the measure in which they occur "kills
them.

Also, all natural sign notes are white notes.

Hope this helps.
Posted By: rocket88

Re: HOW DO ACCIDENTALS APPLY - 06/19/18 01:23 AM

I made a mistake in the previous post, here is the correction:

Originally Posted by rocket88
An accidental applies to one note and one note only: The exact note after which the accidental is marked. And it lasts until the end bar line of the measure in which it occurs.


Accidentals occur before notes, not after. Probably dyslexia laugh
Posted By: MICHAEL122

Re: HOW DO ACCIDENTALS APPLY - 06/19/18 04:09 AM

Thank you for clearing this up, rocket88.
Posted By: TimR

Re: HOW DO ACCIDENTALS APPLY - 06/19/18 11:53 AM

That is the rule, but it is often "honored in the breach."

Yes, an accidental applies only to the octave it is assigned to, but it commonly occurs in the music that it is obviously required in a different octave.

Then there is the bar line problem. Suppose an accidental is on a note tied to another note across the barline. Obviously the tied note retains the accidental. What about subsequent notes in that measure? In my opinion the accidental should cancel. But in my experience the editor follows that convention about 50% of the time. Last night playing in an ensemble there were numerous examples where the accidental applied in the entire following measure after a tie, but I've seen just as many where it doesn't.
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