The Daily Parker

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Blogging A-to-Z 2019 topic list

Blogging A to ZHere is the list of topics I wrote about for the 2019 Blogging A-to-Z challenge on the topic of music theory:

I posted all of them on time this year (7am Chicago time, noon UTC) except on April 13th. I'm quite proud of that. Last year I was less diligent.

I hope you've enjoyed the series. I'm looking forward to next April's topic, which I think you'll find timely and informative.

Z is for Zigeunerlieder

Blogging A to ZToday the Blogging A-to-Z challenge comes to a close, and for the fourth time this year, I have to punt.

Search all you want: music theory really doesn't have any important terms starting with Z. So today, I'm going to talk about one of my favorite vocal works: Brahms' opus 103, "Zigeunerlieder" (Gypsy Songs). I performed three songs from the cycle with the Illinois Music Educators Association All-State Honors Chorus in 1987, 100 years after Brahms wrote it. (Yes, back then I was one of the 256 best high-school age singers in the entire state. I am, right now, blowing on my fingernails.)

Enjoy it. As the score scrolls by, see how much of what I discussed this year you recognize. And enjoy it; it's a cool song cycle.

That's it for the A-to-Z challenge this year. Next April, I'll have a timely topic. Before then, I expect to publish my 7,000th blog entry (probably mid-October), take my 100,000th photograph (probably this month), and live my 18,000th day (almost certainly December 17th).

Thanks for reading!

Gross April weather continues

This month, Chicago has gotten some truly awful weather, more than most Aprils I remember. We saw only the second April in history to get two—count 'em—two snowstorms, the other time in 1938. This caps the snowiest season in 5 years and the 6th snowiest April ever.

Even though we had gorgeous, seasonably-cool weather yesterday, today through Thursday we will get so much rain not even the president could hyperbolize it enough.

We just want spring. The four days in April we got decent spring weather somehow don't seem sufficient.

Y is for You

Blogging A to ZOur penultimate Blogging A-to-Z challenge post this year features the person in your life most likely to continue learning music theory: you.

If you like music, go hear it. CDs and downloads are fine, but really you need to go out to hear live music as often as you can. Go hear the symphony; go to a garage band; toss a dollar in a busker's case in the subway. (You never know who might be performing down there.)

And keep learning how music works. This series has only skimmed the surface of music theory. The Web has several excellent sources for more depth: read Open Music Theory, take quizzes at, check out the Music Notation Project. Take a class at your local college. (In Chicago, DePaul and Northwestern have excellent music schools.)

Thanks for reading this series. I'll have a post for Z tomorrow, too.

Didn't we leave this party weeks ago?

The National Weather Service has issued a winter storm warning for Chicago:


  • WHAT...Rain transitioning to a heavy, very wet snow early in the afternoon and continuing into this evening. Total snow accumulations of 3 to 8 inches will be possible by this evening, with the highest amounts across northern portions of Kane, DuPage, and Cook counties. Snowfall rates of 1 to 2 inches per hour will be possible for several hours this afternoon into this evening. Accumulations of 1 inch or less are expected across portions of southern Cook County. Northeast winds will also gust as high as 35 mph late this afternoon and evening.
  • WHERE...Kane, DuPage and Cook Counties.
  • WHEN...From 1 PM this afternoon to 1 AM CDT Sunday. Heaviest snowfall rates 3 to 8 PM.
  • ADDITIONAL DETAILS...Travel could be very difficult in heavy snowfall and gusty winds with greatly reduced visibilities. Minor tree damage will also be possible to due to the heavy snow and wind.

We still don't know how bad it will be, despite the warning:

Forecasters said they still were tracking the exact path of the storm Saturday morning, but the possibility of snow was most likely north of Interstate 88 — and areas most likely to be hit by more snow were expected to be on the Northwest Side, in northern Cook County suburbs and in Lake and McHenry counties.

Downtown and along the north lakefront, 50–75 mm of accumulation was predicted. The storm should end by midnight, the weather service said.

And yet, we've had worse. We had over 25 mm of snow on 1 May 1940, and measurable snowfall on 22 May 1917. And in Chicago, we won't have the up to 225 mm they'll get in parts of Wisconsin.

X is for Xylophone

Blogging A to ZThe Blogging A-to-Z challenge sometimes loses its way when the topic you want to write about doesn't really have anything interesting to say for one of the letters of the alphabet.

So let it be with X.

Further, it's finally spring in Chicago, so maybe the sunlight and warm weather have made me a little lazy.

To that point, let me just say that the xylophone is a percussion instrument with wood bars that you strike with a mallet to make sounds. Like this:

Expertise in subjunctive scaling of declarative fractions

University College of London researchers John Jerram and Nikki Shure have evidence that rich North American men are the most likely to employ bullshit:

Study participants were asked to assess their knowledge of 16 math topics on a five-point scale ranging from “never heard of it” to “know it well, understand the concept.” Crucially, three of those topics were complete fabrications: “proper numbers,” “subjunctive scaling” and “declarative fractions.” Those who said they were knowledgeable about the fictitious topics were categorized as BSers.

Using a data set spanning nine predominantly English-speaking countries, researchers delineated a number of key findings. First, men are much more likely than women to master the art of hyperbole, as are the wealthy relative to the poor or middle class. North Americans, meanwhile, tend to slip into this behavior more readily than English speakers in other parts of the globe. And if there were a world championship, as a true devotee might appreciate, the title would go to Canada, data show.

Finally, a between-country comparison finds that young people in Canada and the United States are the most likely to over-sell themselves overall, with those in Europe being much less likely to engage in such behavior.

Taken as a whole, the results appear to suggest that the countries with the greatest propensity toward bombast also have the smallest variances between groups living within them. In the U.S. and Canada, for instance, there may simply be so much BS going around that everyone ends up partaking in it.

The paper is available from IZA.

Law professor explains how Mueller proved a conspiracy

Fordham Law School professor Jed Handelsman Shugerman says Attorney General Robert Barr got it exactly backwards:

The Mueller report, holding itself to the higher standard, concluded that it did not find proof beyond a reasonable doubt of criminal conspiracy with Russia. It also offered an explanation: Lies by individuals associated with the Trump campaign “materially impaired the investigation of Russian election interference.” Witnesses deleted emails and used applications with encryption or deletion functions, which also thwarted fact-finding. Part II of the report on obstruction explains why Part I may have fallen short of such a high burden.

Mr. Barr had the analysis backward in his summary letter. The failure to prove an underlying crime does not mean there was no obstruction. The obstruction meant that it became impossible to know whether there was a conspiracy beyond a reasonable doubt — and it impeded the Russian investigation. Mr. Barr then used that doubt to question whether there was the corrupt intent required by obstruction statutes. To the contrary, the preponderance of conspiracy evidence confirms the corrupt intent.

This conduct by President Trump, his son and his campaign manager and deputy campaign manager are probably civil violations of coordination for enforcement by the F.E.C. Presidents should not be impeached for civil election violations, but one should still be able to conclude that Mr. Mueller established coordination with the Russian government as a factual matter. And it may have been so egregious that it was a “high misdemeanor,” and the obstruction was not faithful execution of the law, especially in light of new historical evidence of its meaning.

Meanwhile, the machinery of congressional investigation churns along...

W is for Well-Tempering

Blogging A to ZToday's Blogging A-to-Z challenge entry examines the physics of music. Specifically, when a musician looks at a note on a page, what tone does she actually produce?

Most people today have passing familiarity with the piano, which has one key per note. This means the frequency of each note remains the same no matter what key a pianist plays in. If she hits the A above middle C, the piano strings vibrate at 440 Hertz (cycles per second). The A below middle C is 220 Hz, the A below that is 110 Hz, and so on. All of the notes in between have fixed frequencies as well.

This system, dating from about the beginning of the 20th century, is called equal tempering. It has some pretty interesting consequences, first among them that only the octaves are perfectly in tune. Every other interval is slightly out of tune—sometimes in two ways.

Equal tempering is a compromise, driven in part by the popularity of the piano, because they're so hard to tune. Other instruments don't have this limitation, so in some circumstances (i.e., string quartets), you might hear well-tempering instead.

In well-tempered tuning, some intervals actually do retain their proper mathematical relationships. But only some. Well-tempering is another compromise, resulting in different keys having wildly different tone colors. Bach promoted well-tempering with his two-volume set of preludes and fugues called The Well-Tempered Clavier. (Cue the irony that most people today have never heard it played on a well-tempered instrument. I found a good demonstration of the differences between equal- and well-tempering that's worth 12 minutes of your time.)

Before well-tempering, musicians used Pythagorean tempering (based on perfect 5ths) and meantone tempering (imperfect 5ths to get better 3rds).

For more about this topic, Nathan Nokes has a good video about the physics of these earlier tuning systems, with pure-tone examples. Notice how just and Pythagorean temperaments sound out of tune. Except they're not; they're just different.