Am 07.07.2016 um 13:48 schrieb Jogchum Reitsma:
In the second Kyrie from J.S. Bach's Hohe Messe, the time signature is
4/4, but the bars are filled with 8 quarter notes or its equivalent in
time.
Are you sure you meant 4/4 which is shown as C? Bach uses the cut C
(alla breve).
\set timeSignatureFraction = #'(2.2)
warning: typecontrol failed for 'timeSignatureFraction'; value '(2.2)'
must be of type 'fraction, as pair'
Pairs have to be written with spaces around the dot, so it would be
\set timeSignatureFraction = #'(2 . 2)
or simpler (using a fraction)
\set timeSignatureFraction = 2/2
#'(2.2) is a list containing the number 2.2 as a single element.
There are three solutions to your problem, I would prefer the second
(or maybe the third).
%%%%
\version "2.18.2"
% first solution: use 2/2 and adjust measure length
{
\time 2/2
\set Timing.measureLength = #(ly:make-moment 4/2)
a2 a a a
}
% second solution: use 4/2 and adjust the fraction/alla breve sign
{
\time 4/2
\set Staff.timeSignatureFraction = 2/2
a2 a a a
}
% third solution: set both measureLength and timeSignatureFraction
% without overriding settings made by the \time command (IMO cleaner)
{
\set Timing.measureLength = #(ly:make-moment 4/2)
\set Staff.timeSignatureFraction = 2/2
a2 a a a
}
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