This Week’s Program: Mar 28 - Apr 1

April Fool’s on the Internet is a drag and nobody needs more email today so let’s just plow through these commits:

f65eb1c716fce0dfc26ad8f9d6888c7fefbdf697

New data points to consider in song generation. The average temperature and the length of the day in hours.

f5e43c7f16d37c827cf1d7e929d8b10e6983f4dc

Those calculations get moved into a new fn to clean up what happens in gen-song. I do some fancy Clojure destructuring to make this look easy.

e8612d50780290a8cebc0c084c69b88965b35475

I make a philosophical API design decision. I want to try to restrict calls out to the datagen functions to occur only within gen-song. Not totally realistic but it restricts side effects (random number generation is a side effect) to only one place. Clojure destructuring makes this awesome and easy.

fdf17d4e3386ae43bfd14724866991873689231f

I define key-range which is all the notes in order across three octaves. I then use temperature and do some scaling to map temperature to a pitch in that range. Hotter is higher. Daily average temperature determines the key of the song.

The commits that follow that are mostly cleanup and refactoring commits. I do some more tricks with destructuring and I abstract some of the functionality of the program out of the main function and into a function called generate->record->upload.

Next week I’ll finish up song generation stuff and prepare to productionize this code.

Keep it classy on April Fools,
🃏 Mark