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\compoundMeter cannot handle irrational or fractional meters
From: |
Joseph Rushton Wakeling |
Subject: |
\compoundMeter cannot handle irrational or fractional meters |
Date: |
Wed, 01 Aug 2012 12:30:49 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120714 Thunderbird/14.0 |
Lilypond currently supports simple "irrational meters" like 4/10, 7/6, etc.
which are used by contemporary composers such as Ferneyhough, Adès, etc.
However, \compoundMeter cannot handle many of these complex notations. It
sometimes fails when an irrational component such as 1/10 is included in the
compound meter, and fails when a _fractional_ value such as 2/3 is included in
the compound meter -- as in Boulez' "Le marteau sans maître" where there are
time signatures such as (4 + 2/3)/8 .
I've attached 3 minimal examples, 2 which fail with the compound meter but
compile with the equivalent non-compound irrational meter; and one which
includes a compound irrational meter that works.
compound-irrational.ly
Description: Text Data
compound-fractional.ly
Description: Text Data
compound-irrational-works.ly
Description: Text Data
- \compoundMeter cannot handle irrational or fractional meters,
Joseph Rushton Wakeling <=