Tuesday, September 13, 2022

Chapter 1 Review (Day 24)

NOTATION SCIENTIFIC

Verse 1:
When you're multiplying,
In notation scientific,
Little numbers get added. Easy!
Multiply bigs. Easy! (to Pre-Chorus)

Verse 2:
When you are dividing,
In notation scientific,
Little numbers subtracted. Easy!
Then divide bigs. Easy! (to Pre-Chorus)

Pre-Chorus:
Hey! In decimal,
Anywhere is point.
In scientific, just one,
Digit, then place the point.

Chorus:
Point left, little plus!
Point right, little minus!
Notation scientific.

This is one of the songs that I wrote over the summer.

Originally, this song was written in 18EDL, in ABCABCD format (with a bridge). Once again, this was back when I thought I'd be teaching in a Math 8 class now, using a textbook in which scientific notation is taught near the end of the year (when I'd be using more complex scales and formats).

So I kept most of the lyrics, except for the bridge and third verse (since these verses are about adding numbers in scientific notation, which has been dropped). Also, I'd written the lyrics down but not the 18EDL melody (which was posted on the blog, but my Internet stopped working last night, so the entire tune was inaccessible). So I started a new 10EDL tune from scratch, tweaking it to fit the lyrics. The last line ("That's terrific!") was dropped as it didn't fit the new melody.

Here is a link to the Mocha code for the song:


10 N=8
20 FOR V=1 TO 2
30 FOR X=1 TO 72
40 READ A,T
50 SOUND 261-N*A,T
60 NEXT X
70 RESTORE
80 NEXT V
90 END
100 DATA 7,2,6,2,7,4,8,4,8,2
110 DATA 6,2,8,6,10,6,9,2,6,2
120 DATA 5,8,10,8,6,8,10,8,5,6
130 DATA 6,6,5,2,8,2,10,8,7,8
140 DATA 9,6,7,6,8,4,9,4,10,4
150 DATA 10,4,5,4,9,6,8,6,8,4
160 DATA 8,6,8,6,5,4,5,6,5,6
170 DATA 7,4,9,16,5,8,9,8,9,2
180 DATA 10,2,9,6,6,6,7,4,10,4
190 DATA 5,8,9,8,8,2,7,2,8,2
200 DATA 9,2,9,8,7,4,9,2,7,2
210 DATA 7,2,8,2,7,6,6,6,9,8
220 DATA 7,4,9,2,7,2,10,6,7,6
230 DATA 6,2,8,2,7,16,8,16,5,16
240 DATA 9,4,10,12

Don't forget to click Sound before you RUN the program.

Adding the guitar chords for this 10EDL song is somewhat tricky. The main verse sounds good with D7 and C, perhaps with D7-G7-C as the last three chords. Then when we get to the pre-chorus, we might start with some different chords, E7-Am, before ending with D7-G7 as we head for the chorus. The chords in the chorus resemble that in the verse.

The last few notes are written as whole notes but they go with the last line of the chorus -- no F#, tation E, scien high C, tif D, ic low C. (The original reason for "notation scientific" rather than "scientific notation" was that the former way fit the lyrics and the tune, not to mention the rhyme with terrific that has since been dropped.)

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