[CM] midi-received functions

[Forrest Curo]

Given that the error isn't from the current distribution, I suppose there's
no issue...

Ah, I seem to have finally bumbled through installing 3.9.0, thanks!

On Fri, Feb 19, 2016 at 2:19 PM, Forrest Curo <treegestalt at gmail.com> wrote:

> function mychord (data)
>   with channel = second(data),
>        keynum = third(data),
>        velocity = fourth(data)
>   send("mp:midi", key: key, vel: vel, chan: chan)
>   send("mp:midi", key: key + pick(3,4), vel: vel, chan: chan)
>   send("mp:midi", key: key + 7, vel: vel, chan: chan)
> end
> -------------
> response: 'mychord'
> -------------
> send("mp:receive", mm:on, mychord)
> ------------------
> response: '#t'
> -------------------
> [play note]
> ------------------
> response:
> >>> Error: :vel not a valid keyword argument in
> (:key key :vel vel :chan chan)
> ------------------------------------
>
> That is, it doesn't work in that example because it needs a variable
> 'velocity' rather than 'vel'. (?)
>
> If I fix that and likewise put the variable 'channel' in place of 'chan',
> 'keynum' rather than 'key' -- *then it works*.
>
> Since I'm working with an ubuntu binary of 3.8.0 I might not be using the
> latest examples available(?) [I couldn't install a more recent Grace
> because my system seems to be allergic to cmake > cmake4.3 --
> (perhaps for similar 32-bit --> 64-bit issues?)
> -------------
> If I get rid of the 'send's in the mp.midi lines
> the error instead is:
> >>> Error: vel: unbound variable
> and changing everything as before yields:
>
> >>> Error: mp:midi: unknown key: (:vel 91 :chan 0)
> in (:key 59 :vel 91 :chan 0)
>
> The 'send' and the 'mp:midi' ought to be equivalent; but it's working with
> the 'send' version, while I don't see why:
>   mp:midi(key: keynum, vel: velocity, chan: channel)
> is not.
> (?)
>
>
>
>
> On Fri, Feb 19, 2016 at 10:43 AM, Taube, Heinrich K <taube at illinois.edu>
> wrote:
>
>> its not clear to me what the issue is. does it not work.
>> BTW no need to use send() and just call the function directly so
>>
>> > send("mp:midi", key: key, vel: vel, chan: chan)
>>
>> can be written
>>
>> mp:midi(key: key, vel: vel, chan: chan)
>>
>> i thought I got rid of all that in the documentation and help files.
>>
>>
>> > On Feb 19, 2016, at 10:04 AM, Forrest Curo <treegestalt at gmail.com>
>> wrote:
>> >
>> > The section is "Input Hooks" (speaking of errors... but still not the
>> first title I'd look for this under.)
>> >
>> > On Fri, Feb 19, 2016 at 7:59 AM, Forrest Curo <treegestalt at gmail.com>
>> wrote:
>> > Okay, among 'examples' there is a section titled 'Output Hooks' (not,
>> to my mind, the most obvious titles to look for)
>> > and the examples have errors:
>> > ie
>> >
>> > ; An opcode receiver that plays a major or minor chord whenever a
>> > ; Note On arrives
>> >
>> > function mychord (data)
>> >   with channel = second(data),
>> >        keynum = third(data),
>> >        velocity = fourth(data)
>> >   send("mp:midi", key: key, vel: vel, chan: chan)
>> >   send("mp:midi", key: key + pick(3,4), vel: vel, chan: chan)
>> >   send("mp:midi", key: key + 7, vel: vel, chan: chan)
>> > end
>> >
>> > ;; assign receiver for the mm:on opcode (Note Ons)
>> >
>> > send("mp:receive", mm:on, mychord)
>> >
>> > ;; when you are done clear it...
>> >
>> > send("mp:receive", mm:on, #f)
>> > -----------------------------------------------------------
>> >
>> > It can be fixed, however. This works:
>> > -------------------------------------------------------------
>> > function mychord (data)
>> >   with channel = second(data),
>> >        keynum = third(data),
>> >        velocity = fourth(data)
>> >   send("mp:midi", key: keynum, amp: velocity, chan: channel)
>> >   send("mp:midi", key: keynum + pick(3,4), amp: velocity, chan: channel)
>> >   send("mp:midi", key: keynum + 7, amp: velocity, chan: channel)
>> > end
>> >
>> > ;; assign receiver for the mm:on opcode (Note Ons)
>> >
>> > send("mp:receive", mm:on, mychord)
>> >
>> >
>> > On Thu, Feb 18, 2016 at 9:10 PM, Forrest Curo <treegestalt at gmail.com>
>> wrote:
>> > I see a tutorial on sending midi out
>> >
>> > and ways to declare a function to be receiving midi in with specific
>> opcodes
>> >
>> > but I'm not at all clear on how such a function should be written to
>> extract the data when a midi message comes in.
>> >
>> > Examples anywhere?
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > Cmdist mailing list
>> > Cmdist at ccrma.stanford.edu
>> > https://cm-mail.stanford.edu/mailman/listinfo/cmdist
>>
>>
>
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