RE: multiple tempi in a single piece

[Mats Bengtsson]

Kieran,

Can you provide some hints on how to make this even easier
to find in the manual? If you read the section on "Creating
MIDI files", it says "The tempo can be specified using the \tempo 
command within the actual music, see Metronome marks."
and if you follow the link to Metronome marks, you will see
exactly the type of solution described below.

Trevor, why do you include the \override Score.MetronomeMark #'padding = #3.0
setting? Since you just set the metronome marks transparent, they will 
still influence the staff spacing and if you increase
the padding, the spacing will be even wider. If you don't want
the tempo changes to influence the printed layout, I would rather
recommend to use
\override MetronomeMark #'stencil = ##f
instead of transparent = ##t, which removes them completely, not
just makes them transparent.

  /Mats

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: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
>
>
>
>
>
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