[PD] [OT] Sequencing design

[Kyle Klipowicz]

This is a good question!  Hopefully Frank's RRadical project, in
particular the Memento class of state saving abstractions, will make
this easier to deal with.  Also the new [list] class of objects should
help out with this stuff.

Unfortunately,  if you are a newbie, it can be a bit of a pain in the
ass to install Memento/RRadical and have it work.  This will change,
I'm guessing, once Frank updates it to Pd 0.39 standards of graph on
parent and list.

In the meantime, you can use things like [textfile] and [qlist] to
keep track of notes, velcities, times, and other controller messages.

Anyone with more experience want to offer some expertise?

~Kyle

On 12/2/05, bstine at telus.net <bstine at telus.net> wrote:
>
>
> Hi all
>
> I know this is a little off topic, but this seems like the best place to ask.  I
> was wondering what the best way to implement a sequencer is.  I know that's a
> big question, but I mean in the most abstract way.  I've been experimenting with
> java and have tried keeping the MIDI notes in a sorted list and have a thread
> that, after its started, checks the elapsed time (in 1/64th ticks) compared to
> the first MIDI note's timestamp.  If the timestamp matches the current tick then
> it does something with that note.  I've been sending messages to Pure Data and
> tested the accuracy of the clock with the [timer] object, but sometimes there
> are audible differences in the timing when trying to output notes at regular
> intervals.
>
> I hope that paragraph was coherent...my question is what is a good way to
> implement a sequencer (if anyone has an abstract explanation)?  I'd like to be
> able to record notes on the fly, if possible.
>
> thanks
>
> -brendan
>
>
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