The Daily Parker

Politics, Weather, Photography, and the Dog

Where plaid comes from

A farmer in Scotland tweaks American tourists:

A cheeky farmer is winding up American tourists by spray-painting her sheep tartan – and claiming it’s caused by the animals drinking popular Scottish soft drink, Irn-Bru.

Owner Maxine Scott, 62, used her skills with a spray-can to brighten up ewes April and Daisy.

Scott puts up a sign pretending that the sheep turn bright orange naturally and that their fleeces are then used to make tartan wool for kilts and blankets.

The sheep live on Auchingarrich Wildlife Centre, Comrie, Perthshire, and are decorated using marker spray, used by farmers to identify sheep during lamb numbering.

I wonder what clan they're in?

Is Moneyball killing a game show?

Washington Post columnist Charles Lane sees a disturbing connection between Jeopardy! champion's streak on the show and the data-driven approach that has made baseball less interesting:

People seem not to care that Holzhauer’s streak reflects the same grim, data-driven approach to competition that has spoiled (among other sports) baseball, where it has given us the “shift,” “wins above replacement,” “swing trajectories” and other statistically valid but unholy innovations.

Like the number crunchers who now rule the national pastime, Holzhauer substitutes cold, calculating odds maximization for spontaneous play. His idea is to select, and respond correctly to, harder, big-dollar clues on the show’s 30-square gameboard first. Then, flush with cash, he searches the finite set of hiding places for the “Daily Double” clue, which permits players to set their own prize for a correct response — and makes a huge bet. Responding correctly, Holzhauer often builds an insurmountable lead before the show is half over.

Dazed and demoralized opponents offer weakening resistance as his winnings snowball. And, with experience gained from each new appearance on the show, Holzhauer’s personal algorithms improve and his advantage grows.

In short, this professional gambler from Las Vegas does not so much play the game as beat the system. What’s entertaining about that? And beyond a certain point, what’s admirable?

Of course, Holzhauer’s strategy could not work without his freaky-good knowledge of trivia, just as baseball’s shift requires a pitcher skilled at inducing batters to hit into it. The old rules, though, would have contained his talent within humane channels. As it is, he’s set a precedent for the further professionalization of “Jeopardy!,” a trend which began 15 years ago with 74-time winner Ken Jennings.

If you enjoy watching nine batters in a row strike out until the 10th hits a homer, you’re going to love post-Holzhauer “Jeopardy!”

Also interesting is the timing: Charles van Doren died April 9th. He won the equivalent of $1.2m in 1957 by cheating on a game show.

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!

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 MusicTheory.net, 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.

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.

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.

Busy news day

A large number of articles bubbled up in my inbox (and RSS feeds) this morning. Some were just open tabs from the weekend. From the Post:

In other news:

And now, to work, perchance to write...