Re: Multiple tempos at the same time and midi playback?

[Yakir Arbib]

Sorry - email got cut!

Thanks DJF for your detailed example... I really appreciate it.  Yes I
am very new to LilyPond and still reading the latter parts of the user
manuals.  But from what you say, it seems like at least visually
LilyPond can accomplish a score with different metronome marks for
each instrument - and that is a great starting point for me!

By the way, what GUI would you suggest me to use where I can type in
the sourcecode and listen to playback without compiling a midi file
each time?

For the simultaneous midi playback of different metronomes, if
(whichever) GUI you suggest to me is an open source progect, then I
could try with the help of an experienced programmer to code an option
for simultaneous tempi playback.

It's been three years since I wrote my last piece for orchestra (using
Sibelius) which is no longer accessible for the blind.  And out of
frustration from not being able to compose since, I started developing
a new accessible notation software that did support simultaneous tempi
playback.  Unfortunately just when things were getting hot my
programmer walked out on me.  So that's how I thankfully discovered
LilyPond which might be a solution for me.  But at least from that
experience I know that (some way or another) simultaneous playback of
different tempi can be possible.

Thank you very much again people, and any other suggestion/ tip is
super appreciated!

Best day,

Yakir

On 12/14/18, Yakir Arbib <address@hidden> wrote:
> Hi All,
>
> Thank you very much for your help and suggestions!
>
> On 12/14/18, Carl Sorensen <address@hidden> wrote:
>>
>>
>> On 12/13/18, 5:33 AM, "Yakir Arbib" <address@hidden> wrote:
>>
>>     Hi All,
>>
>>
>>     My name is Yakir and I'm a pianist / composer based in Paris.
>>
>>     I am very new to LilyPond, so please pardon me if my question is
>>     annoying or redundant.
>>
>>     I write modern classical music in which each instrument has its' own
>>     separate tempo.  My question is, do you think it's possible to write
>>     something like that in LilyPond using separate tempo commands for
>> each
>>     staff?
>>
>> I'm pretty sure you will not be able to accomplish this easily in
>> LilyPond.
>> It is probably possible by using scaled durations.
>>
>> Lilypond's basic timing is done in beats.  Beats are grouped into
>> measures.
>> The timing is not done in seconds, or minutes.
>>
>> So if you want to have one staff at 4/4 and a tempo of 60, with another
>> staff at 4/4 and a tempo of 120, you'll probably need to scale the
>> durations
>> of all the notes in the 120 staff by two, and probably fake the time
>> signature (that is, set the time signature to say, 4/2 but display it as
>> 4/4).  And when you do that, you'll need to reset the beaming rules.
>>
>> So I think it's doable, but not easily.
>>
>> HTH,
>>
>> Carl
>>
>>
>>
>