Excerpt: “Music and Dance” from Kadavy’s Design Hackers

As many of you know, I am a full-stack web developer by profession. As part of our weekly reading hour, I read (and was clearly excited by) the following passage from David Kadavy‘s Design <for> Hackers:

Music and Dance

Although some experimentation has been done with irrational numbers, such as the golden ratio, the most popular music tends to contain very simple patterns. Most rock songs are in 4/4 time, meaning that there are four beats per measure. Also occasionally found in popular music is 3/4 time, meaning there are three beats per measure; 3/4 time is the time signature of waltz music.

One of the most fascinating examples of proportion in music can be found in proportion’s influence on tone, as shown in Figure 5-15. If you strum an open guitar string tuned to C, you’ll hear a C note. If you shorten the length of the string to half its original length, you’ll hear another C note, but this time an octave higher (the eighth note in the major scale). If you take that same string and strum it instead at three-fourths its original length, you’ll hear an F note (the fourth or subdominant note in the major scale). If you strum the string at two-thirds its original length, you’ll hear a G note (the fifth or dominant note in the major scale).

Figure 5-15 from Design for Hackers by David Kadavy

Figure 5-15

Shortening a guitar string to three-fourths or two-thirds its original length produces the subdominant and dominant notes, respectively, in the major scale.

Continue reading “Excerpt: “Music and Dance” from Kadavy’s Design Hackers”

In memory of Carl David Flores

I don’t update this very often because if you’re around San Diego, chances are at any one of the venues, you’ll find me, and I’ll always run the monthly Blues Labs. Two weeks ago, however, I lost a friend who was very near and dear to me and one of the major driving forces behind my immersion into blues music and blues idiom dances.

I’ve made eleven posts on Facebook thus far of memories of various aspects of Carl Flores, but the one I posted on Facebook for tonight’s blues lab is what I want to share here: Continue reading “In memory of Carl David Flores”

Another Double DJ Weekend

I apologise for not updating as much I’d originally planned. The Blues Labs have been going strong, and I have DJ’d at The JAM as well as First Saturday Swing in the last few months, as well as City in Motion.

Anyway, I will be DJing at two locations this weekend! First will be the early set in the upstairs blues lounge (tonight!) at JAMnBLUES in Kearny Mesa. Again, that’s tonight, Friday, the 6th of March, 2015. Taster lesson by Roger Nielsen begins at 9:15pm, and my set will begin at 10pm and go until 11:30pm or a little later.

The second will be in the Blues Alley at First Saturday Swing on the 7th of March, 2015 (tomorrow!). FREE beginner and intermediate swing lessons at 8pm, dancing at 9pm, and the blues room opens at 10pm. Continue reading “Another Double DJ Weekend”