Wednesday, February 22, 2012

Droppin’ the fractal beat!

I concluded my undergraduate computer science thesis on generating fractal music by postulating that “Western sounding” music would require the generator to impose a lot of predefined conventions on the musical structure.  My program wasn’t really making very musical music, in other words.  It was interesting enough, though:
Recursive string rewriting or L-Systems.
I noted that music written by humans oftentimes contains fractal structures within it, such as the beginning of Beethoven’s first Ecossaise, with successive bifurcations indicated:
(This structure is similar to the ABACABA song).
Daniel Levitin has spent some time researching fractal structures in existing music.  His recent work, involving the digital analysis of hundreds of scores, reveals fractals buried in the rhythmic signatures of history’s composers:

Sunday, February 12, 2012

Love, the Fibonacci way

Remember the Fibonacci sequence?  Start with 1.  Then another 1.  Now each subsequent number is the sum of the two previous numbers, so we have 1, 1, 2, 3, 5, 8, 13, … forever!  This sequence allegedly began with Fibonacci’s modeling of a rabbit population. 

Bonus: can you extend the sequence the other direction – what number would come before the first 1?  What family of function would you guess the sequence to be?

Thursday, February 2, 2012

Three quick ones

Along the lines of my last post, I came up with these for you to decipher immediately…