Re: Control over midi output
On Tue, Dec 04, 2018 at 09:33:44AM -0500, Mr Tim wrote: > Hi all, I'm trying to use Lilypond to create midi files to be played by an > organ and I'm having difficulty getting it formatted the way it needs to be. I've had a fair bit of success recently with midicsv and csvmidi: https://www.fourmilab.ch/webtools/midicsv/ It can produce MIDI format 0 files, though you'll have to do some transmogrification of the CSV to merge it all onto one track. You can reassign which channel is used for note events, and should be able to introduce program change events and system exclusive events also. Cheers, Tyler ___ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
Re: Control over midi output
Mr Tim writes: > Hi all, I'm trying to use Lilypond to create midi files to be played by an > organ and I'm having difficulty getting it formatted the way it needs to be. > > 1) The midi file needs to be type 0 (everything in one track--the first > one). This is very common for driving instruments since it's simpler and > cost less to develop. > > 2) I'm looking to control which channels are used instead of having > Lilypond assign them. The note events will be in the first 4 channels, but > I will not always create sequential channels. I may just want all the note > events in channel 2, or maybe just 1 and 4. > > These first 2 items will get me pretty far but I will still need to do one > a couple more things: > > 3) I need to send program (instrument/patch) change events on channel 11 > which controls the organ stops. No notes will be on 11, just the program > changes. > > 4) I need to be able to embed a Sysex command at the beginning and end of > the file which tells the organ to clear all stops. LilyPond is not suitable for that kind of fine control over Midi generation. Try post-processing the Midi with a program intended for that kind of manipulation. -- David Kastrup ___ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
Control over midi output
Hi all, I'm trying to use Lilypond to create midi files to be played by an organ and I'm having difficulty getting it formatted the way it needs to be. 1) The midi file needs to be type 0 (everything in one track--the first one). This is very common for driving instruments since it's simpler and cost less to develop. 2) I'm looking to control which channels are used instead of having Lilypond assign them. The note events will be in the first 4 channels, but I will not always create sequential channels. I may just want all the note events in channel 2, or maybe just 1 and 4. These first 2 items will get me pretty far but I will still need to do one a couple more things: 3) I need to send program (instrument/patch) change events on channel 11 which controls the organ stops. No notes will be on 11, just the program changes. 4) I need to be able to embed a Sysex command at the beginning and end of the file which tells the organ to clear all stops. I've tried using the midi channel mapping. It ended up still type 1 file, setting all the note events to channel 0, and using the channel prefix (incorrectly) at the beginning of the track to set the channel which would not help even if it worked correctly. By incorrectly, I mean it's sending the meta event 0xFF 0x21 0x01 followed by the channel number. It should be 0xFF 0x20 0x01... according to the MIDI spec. anyway, it would not work as I said since I need type 0 which sinks that ship at the dock. Not to mention the organ may not even accept that meta event since it doesn't record that way. Any ideas? ___ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
Re: Use String to reference Variable
Jan-Peter Voigt writes:
> Hello Pedro,
>
> Am 04.12.18 um 04:28 schrieb Pedro Pessoa:
>> Hello!
>> I want a function that takes a string as arg an from that produces a valid
>> variable reference, as follows:
>>
>> %%% pseudo
>> Nabc={a1 d e f}
>> Nxyz={b1 e a d}
>>
>> fun=
>> #(define-music-function (x)(string?)
>>#{
>> <<
>>#(concat x "abc")
>>\\
>>#(concat x "xyz")
>> >>
>>#})
>>
>> \fun "N" %produces parallel music with Nabc and Nxyz
>> %%%
>>
>> ---
>>
>> I've ran this test:
>>
>> %%%
>> \Nabc={some music}
>> (display (string->symbol (string-append "N" "abc")))
>> %%%
>>
>> It outputs "Nabc", not the music content of Nabc, as I expected.
>> Why is that? How do I make it point to the actual music?
> The string is converted to a symbol and a symbol is a primitive datatype
> in guile-scheme. To receive the value of the variable you have to ask
> the parser. To place the result in the music you should use an instant
> scheme expression (introduced by '$' not '#').
>
> HTH:
>
> fun=
> #(define-music-function (x)(string?)
>#{
> <<
>$(ly:parser-lookup (string->symbol (string-append x "abc")))
>\\
>$(ly:parser-lookup (string->symbol (string-append x "xyz")))
> >>
>#})
In this particular case, # would have worked though $ tends to work in
more cases. However, $ also creates a _copy_ of the music while #
doesn't. If the music ends up in a \relative or \transpose or other
construct modifying its content in place, having a copy is important so
that the original variable does not get changed.
\xabc creates a copy like $xabc does, while #xabc doesn't.
--
David Kastrup
___
lilypond-user mailing list
lilypond-user@gnu.org
https://lists.gnu.org/mailman/listinfo/lilypond-user
Re: Use String to reference Variable
Hello Pedro,
Am 04.12.18 um 04:28 schrieb Pedro Pessoa:
> Hello!
> I want a function that takes a string as arg an from that produces a valid
> variable reference, as follows:
>
> %%% pseudo
> Nabc={a1 d e f}
> Nxyz={b1 e a d}
>
> fun=
> #(define-music-function (x)(string?)
>#{
> <<
>#(concat x "abc")
>\\
>#(concat x "xyz")
> >>
>#})
>
> \fun "N" %produces parallel music with Nabc and Nxyz
> %%%
>
> ---
>
> I've ran this test:
>
> %%%
> \Nabc={some music}
> (display (string->symbol (string-append "N" "abc")))
> %%%
>
> It outputs "Nabc", not the music content of Nabc, as I expected.
> Why is that? How do I make it point to the actual music?
The string is converted to a symbol and a symbol is a primitive datatype
in guile-scheme. To receive the value of the variable you have to ask
the parser. To place the result in the music you should use an instant
scheme expression (introduced by '$' not '#').
HTH:
fun=
#(define-music-function (x)(string?)
#{
<<
$(ly:parser-lookup (string->symbol (string-append x "abc")))
\\
$(ly:parser-lookup (string->symbol (string-append x "xyz")))
>>
#})
Jan-Peter
___
lilypond-user mailing list
lilypond-user@gnu.org
https://lists.gnu.org/mailman/listinfo/lilypond-user
