Composing Songs With Math Constants [I love PI].
![](https://steemitimages.com/640x0/http://i.imgur.com/aCmqdhA.png)
In this post, I’m going to explore composing a song using pi to 11 decimal places.
3.14159265358
In my last post on math and music, I let numbers represent notes in a scale. This time I will use that mapping to choose the chords for the song.
In the key of C, the chords corresponding to these digits are: Em, C, F, C | G, Dm, Dm, Am | G, Em, G, C
Chord Number Map -------------------------------- Em C F C | G Dm Dm Am | G Em G C 3 1 4 1 5 9 2 6 5 3 5 8 --------------------------------
The scale of C repeats itself at higher and lower frequencies. If 1-7 represent the unique notes/chords in a scale, anything above 7 is subtracted by 7 to figure out what note/chord it is. In this case we have the 9 which is really a 2 note/chord or D minor in this case.
I didn't mention this earlier but I'm using the 'm' after a letter to denote a minor chord where the 3rd (note two whole steps above the root in the chord) is flat or 1.5 steps from the root.
Here is a recording of these chords. In the recording, I held each chord for 2 beats and the last chord in the set for 8 beats with a small amount of embellishment.
Soundcloud link (the soundcloud embed didn't work)
There you have it. An instrumental song caled I Love Pi that is composed based on pi out to 11 decimal places.