Re: Josephs 19-of-72 and C64's

Paul said to Joseph :
>
> NUMBER 1
>
> Unison vectors:
> 2 -3 1
> 4 -1 0
> -3 3 1
>
> Scale: 0,4,8,11,15,19,23,27,30,34,38,42,45,49,53,57,61,64,68(,72)
> Steps: 4,4,3,4,4,4,4,3,4,4,4,3,4,4,4,4,3,4,4
> (maximally even 19 out of 72)
>

...and perfectly transposable.

Steps: 4,4,3,4,4,4,4,3,4,4,4,3,4,4,4,4,3,4,4
# 1,-1
---------------------------------------------
4,4,3,4,4,4,4,3,4,4,4,4,3,4,4,4,3,4,4

Steps: 4,4,3,4,4,4,4,3,4,4,4,3,4,4,4,4,3,4,4
b -1,1
---------------------------------------------
4,4,3,4,4,4,3,4,4,4,4,3,4,4,4,4,3,4,4

Regarding C64's, the best music software I wrote was on that beast.
It was a 3 task multi-tasker switching every millisecond. Each task
handled one of the Commodores music voices interpreting an
independent text encoded part. [Actually it had a compile
phase where some of the text data, for instance floating point
numbers, was converted into whatever the pitch data was represented
as]. I did a some JI and polyrythm experiments on that with accuracy
I believe to be better than I can do now in MIDI. One neat trick
I remember was writing a trill which I sped up until the 'note-on'
messages were well within the audio band (a few hundred hertz). It
sounded like a two stroke motorcycle taking off. I believe the
terminal pitch in this experiment was higher than I could acheive
in MIDI as well.

Bob Valentine

--- In tuning@y..., Robert C Valentine <BVAL@I...> wrote:
>
> Paul said to Joseph :
[...]
> > (maximally even 19 out of 72)
> >
>
> ...and perfectly transposable.

Yes, maximally even or even just distributionally even scales
are "transposable" in your sense.

So Dave Keenan's amazing 31 out of 72 is too (did you catch that one)?

>
> Regarding C64's, the best music software I wrote was on that beast.

What did they call the sound chip on that? The SID chip, right? And
the video chip was the VIC chip . . . these chips were originally
designed for video games, right? So what's today's descendant of the
SID?