Re: [OT] dicemusic -- a common-lisp generator of lilypond scores

[Aaron Hill]

On 2019-09-28 9:12 pm, Mark Probert wrote:
> Hi, all.
>
> While not of general interest, I thought some of you might find this
> small project of mine amusing.  I was recently inspired by a YT video
> to have a go at coding one of the late 18th C dice music games (the
> "Mozart" Waltz generator Simrock published in 1793).  It was a fun
> exercise and then I found out that the clever folk at opus-infinity.org
> had trodden this ground before me... oh well. Still I give away the
> source code :-)
>
> Anyhow, this is one way of creating lilypond scores and I'd be grateful
> if people had comments either on the lilypond idioms I've used (it is a
> parallelMusic thing) or on my CL (I'm pretty new to that idiom as 
> well).
>
> Anyhow, as it currently is it generates 2xbar 3/8 waltzes in a late-18C
> style. They are really quite cute.

Be aware the final measure of the first half of the waltz needs to be 
written as two alternatives.  See the following output [1] from 
opus-infinity.org for reference.

[1]: 
https://opus-infinity.org/media/cache/composition_manager/62bbd39039d34e7aadbf84518bfe5063/702a8a1b140b83bb8355d35017c42c4e/lilypond_concat.png

This corrects the otherwise odd-sounding minor second intervals that 
appear in the left hand.


-- Aaron Hill