The Mystical Secret of Rhythm

Started by snyprrr, October 21, 2012, 07:14:28 PM

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snyprrr

A half note at 100 equals a dotted quarter note at 80.


Or,

something like that! ;) ;D 8)

It's easy to see how music gets pulled out of shape.

Reverend Bong

#1
To change the subject, I've never heard of Aperghis before, I see he's one of your favourites.  Can you recommend something to start listening to?  I have a very limited experience of Xenakis, which I enjoyed.

Karl Henning

Quote from: snyprrr on October 21, 2012, 07:14:28 PM
A half note at 100 equals a dotted quarter note at 80.

Don't tell me: a graduate of the Paul Ryan School of Mathematics ....
Karl Henning, Ph.D.
Composer & Clarinetist
Boston MA
http://www.karlhenning.com/
[Matisse] was interested neither in fending off opposition,
nor in competing for the favor of wayward friends.
His only competition was with himself. — Françoise Gilot

Mirror Image


DavidRoss

Quote from: karlhenning on October 22, 2012, 03:07:49 AM
Don't tell me: a graduate of the Paul Ryan School of Mathematics ....
You mean unlike the mainstream (i.e. partisan Democrat) press corps and virtually the entire Democratic party (plus a substantial number of Republicans), he can actually add, subtract, multiply, and divide ... and he understands the fundamental principle of TAANSTAFL?
"Maybe the problem most of you have ... is that you're not listening to Barbirolli." ~Sarge

"The problem with socialism is that sooner or later you run out of other people's money." ~Margaret Thatcher

DavidW

Quote from: snyprrr on October 21, 2012, 07:14:28 PM
A half note at 100 equals a dotted quarter note at 80.


Or,

something like that! ;) ;D 8)

It's easy to see how music gets pulled out of shape.

I like how the thread derails immediately after this post.  So for people paying attention, what is a half note at 100?  100 what?  How are those two things equal.  Please someone explain to the likes of me, and please no more politics.

Opus106

#6
100 ticks and tocks of a metronmic clock.

To be serious for a moment, I think he-whose-name-is-rarely-spelt-correctly was referring to stuff like this.
Regards,
Navneeth

mahler10th

Quote from: Opus106 on October 22, 2012, 09:14:30 AM
100 ticks and tocks of a metronmic clock.

What is the speed of the metronome clock though?  It might tick tock faster than expected.   :-\ :P

Karl Henning

Quote from: DavidW on October 22, 2012, 09:07:26 AM
I like how the thread derails immediately after this post.  So for people paying attention, what is a half note at 100?  100 what?  How are those two things equal.  Please someone explain to the likes of me, and please no more politics.

If there are 100 half-notes per minute, there will be 200 quarter-notes per minute.

A dot adds half the rhythmic value of the note it modifies, so a dotted quarter-note equals three eighth-notes, i.e. three-quarters of the duration of a half note.

If I have done the math aright (and I may not have), there would be 133 ⅓ dotted quarter-notes per minute.
Karl Henning, Ph.D.
Composer & Clarinetist
Boston MA
http://www.karlhenning.com/
[Matisse] was interested neither in fending off opposition,
nor in competing for the favor of wayward friends.
His only competition was with himself. — Françoise Gilot

Rinaldo

Quote from: Scots John on October 22, 2012, 09:19:09 AM
What is the speed of the metronome clock though?  It might tick tock faster than expected.   :-\ :P

Oh, don't go there. I was part of a volunteer crowd setting up a performance of Ligeti's Poème symphonique and measuring all those borrowed little devils was.. well, let's say, time consuming!
"The truly novel things will be invented by the young ones, not by me. But this doesn't worry me at all."
~ Grażyna Bacewicz

Karl Henning

Quote from: Rinaldo on October 22, 2012, 09:43:43 AM
Oh, don't go there. I was part of a volunteer crowd setting up a performance of Ligeti's Poème symphonique and measuring all those borrowed little devils was.. well, let's say, time consuming!

Cor, I'll bet it was!
Karl Henning, Ph.D.
Composer & Clarinetist
Boston MA
http://www.karlhenning.com/
[Matisse] was interested neither in fending off opposition,
nor in competing for the favor of wayward friends.
His only competition was with himself. — Françoise Gilot

Opus106

Speaking of metronomes -- and let's speak about metronomes until someone wants to take up the topic of mystics further...

http://www.youtube.com/v/kqFc4wriBvE
Regards,
Navneeth

Karl Henning

Quote from: Opus106 on October 22, 2012, 09:54:53 AM
Speaking of metronomes -- and let's speak about metronomes until someone wants to take up the topic of mystics further...

I'm mystified how snypsss figured there are fewer dotted quarter-notes than half-notes to the minute . . . let alone how he settled on that numerical ratio.
Karl Henning, Ph.D.
Composer & Clarinetist
Boston MA
http://www.karlhenning.com/
[Matisse] was interested neither in fending off opposition,
nor in competing for the favor of wayward friends.
His only competition was with himself. — Françoise Gilot

mahler10th

Quote from: Opus106 on October 22, 2012, 09:54:53 AM
Speaking of metronomes -- and let's speak about metronomes until someone wants to take up the topic of mystics further...

http://www.youtube.com/v/kqFc4wriBvE

There are sub-atomic differences.  I can hear them.   :P

Opus106

Quote from: karlhenning on October 22, 2012, 09:58:39 AMI'm mystified how snypsss figured there are fewer dotted quarter-notes than half-notes to the minute . . . let alone how he settled on that numerical ratio.

That, of course, is the mystical secret.

Quote from: Scots John on October 22, 2012, 10:00:38 AM
There are sub-atomic differences.  I can hear them.   :P

I think that's your ear drums being out of sync. >:D ;)
Regards,
Navneeth

Scarpia

Quote from: karlhenning on October 22, 2012, 09:26:56 AM
If there are 100 half-notes per minute, there will be 200 quarter-notes per minute.

A dot adds half the rhythmic value of the note it modifies, so a dotted quarter-note equals three eighth-notes, i.e. three-quarters of the duration of a half note.

If I have done the math aright (and I may not have), there would be 133 ⅓ dotted quarter-notes per minute.


To be formal, it can be done as a standard unit-conversion problem, you keep multiplying by different forms of unity

(100 half-note/minute) (2 quartet-note/1 half-note) (1 dotted-quarter-note/1.5 quarter-note) = 133.3...dotted-quarter-note/minute  Karl is correct.

Karl Henning

Quote from: Scarpia on October 22, 2012, 11:28:43 AM
To be formal, it can be done as a standard unit-conversion problem, you keep multiplying by different forms of unity

Your point is well taken;  just thought I'd detail some of the music notation applications.
Karl Henning, Ph.D.
Composer & Clarinetist
Boston MA
http://www.karlhenning.com/
[Matisse] was interested neither in fending off opposition,
nor in competing for the favor of wayward friends.
His only competition was with himself. — Françoise Gilot

Scarpia

Quote from: karlhenning on October 22, 2012, 11:33:56 AM
Your point is well taken;  just thought I'd detail some of the music notation applications.

Quite so.  My formula is the explicit mathematical expression of the information you listed.

Gurn Blanston

Can it be that we are actually talking about how all those little ties and slurs and rests etc make the rhythm happen? The little syncopation's and such. Or like DavidW was mentioning the other night about a quartet where each instrument was playing in a different time signature, and yet they blended in a perfectly... mystical rhythm? I wonder if that is what that rascally Snypper is alluding to, instead of straightforward math. Hmmm?


8)
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Haydn: that genius of vulgar music who induces an inordinate thirst for beer - Mily Balakirev (1860)

Karl Henning

Quote from: Gurn Blanston on October 22, 2012, 11:49:47 AM
Can it be that we are actually talking about how all those little ties and slurs and rests etc make the rhythm happen? The little syncopation's and such. Or like DavidW was mentioning the other night about a quartet where each instrument was playing in a different time signature, and yet they blended in a perfectly... mystical rhythm? I wonder if that is what that rascally Snypper is alluding to, instead of straightforward math. Hmmm?


8)

Whoa, Gurn . . . before anyone tries to climb into snypsss' head, oughtn't there to be a medical man to counsel us as to the risks versus the benefits? ; )
Karl Henning, Ph.D.
Composer & Clarinetist
Boston MA
http://www.karlhenning.com/
[Matisse] was interested neither in fending off opposition,
nor in competing for the favor of wayward friends.
His only competition was with himself. — Françoise Gilot