RE: multiple tempi in a single piece

[Trevor Daniels]

Kieran Coulter wrote on 05 October 2007 03:38
> 
> Thanks for the tip Trevor, I will try it out!
> 
> So just to be totally sure, 
> 
> 1) you add the tempo map, "killing time" with 
> s's, as its own voice?

No, although that might work.  I've attached the main file of the example I 
posted (Choir&Piano.ly), which contains the structure and is quite well 
commented, as this was a learning exercise for me, and all the files which are 
included.  As it stands all these need to be placed in a folder called 
"includes" if you want to compile it.  (Mats: any hints on improving this are 
welcome!) You'll see the Tempi.ly file contains a number of variables like 
TempiA below all gathered together in a variable Tempi.  (This is simply for 
ease of editing - one tempi variable to a page of the score I was 
transcribing.)  Then, as you can see, I simply include \Tempi in the soprano 
voice in parallel with the soprano music. 
> 
> 2) Do you still need to add the global default 
> tempo in the MIDI block if you do this?

Yes, I believe this is still necessary - it was in LP 2.8.

>  tempoWholesPerMinute = #(ly:make-moment 72 4) 

Or rather simpler:
   \tempo 4=72

> 
> 3) If so, and you also explicitly add a tempo in 
> measure 1 of your tempo voice, and they are 
> different, does it produce an error or does one 
> override the other?

I've not tried making them different, but I would guess the one in the measure 
would prevail.

> 
> Thanks again!
> 
> Kieran
>
Trevor 
> >Quoting Trevor Daniels <address@hidden>:
> >
> >> Hi Kieran
> >>
> >> The following shows how I change the Midi 
> tempi - you can
> >> easily adapt this example to do what you want:
> >>
> >> TempiA= {
> >> \override Score.MetronomeMark #'padding = #3.0
> >> %Page 1 System 1 Bar 1
> >> \tempo 2=80 s1 | s | s | s | s | s | s |
> >> %Page 1 System 2 Bar 8
> >> % the following tempo changes implement the 
> fermata in bar
> >> 9
> >> \override Score.MetronomeMark #'transparent = 
> ##t % hide
> >> the marks
> >> s1 | \tempo 2=50 s | \tempo 2=80 s | s1 | s | 
> s | s | s | s
> >> |
> >> %Page 1 System 3 Bar 17
> >> % the following tempo changes implement the 
> fermata in bar
> >> 18
> >> s1 | \tempo 2=50 s | \tempo 2=80 s | s | s | s 
> | s | s |
> >> }
> >>
> >> I simply insert this in parallel with the music.
> >>
> >> Trevor
> >>
> >> -----Original Message-----
> >> From: 
> address@hidden
> >> 
> [mailto:lilypond-user-bounces+t.daniels=treda.co.u
address@hidden
>> On Behalf Of Kieran Coulter
>> Sent: 10 July 2007 01:51
>> To: address@hidden
>> Subject: multiple tempi in a single piece
>>
>>
>> Hi everyone,
>>
>> I am sure there is a way to do this, but maybe someone here
>> has already faced this challenge and can help show me how it
>> can be done.
>>
>> My example is the Bach Sinfonia from Partita #2. It has a
>> Grave, Andante, and Allegro, but the MIDI file plays all the
>> sections at the same speed, 120bpm. I am looking for a way
>> to modify the .ly file so that it generats a MIDI file that
>> plays the Grave at say 40bpm, the Andante at 80bpm, and only
>> the Allegro at 120bpm.
>>
>> I would greatly appreciate any help to discover how to do
>> this!
>>
>> Thanks,
>>
>> Kieran Coulter
>>
>>
>>
>>
>>
>> _______________________________________________
>> lilypond-user mailing list
>> address@hidden
>> http://lists.gnu.org/mailman/listinfo/lilypond-user
>>
>
>
>

Choir&Piano.ly
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Alto.ly
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Bass.ly
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Breaks-5.ly
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futuraeLyrics.ly
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nobisLyricsA.ly
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nobisLyricsB.ly
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Soprano.ly
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Tempi.ly
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Tenor.ly
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