Re: doubled accidental

[Keith OHara]

Maxim Gawrilow <eldrad.ulthran <at> o2online.de> writes:

> If the initial key sets a note flat (b-flat minor) and I later change this 
> note
> to sharp (ges to gis), in the score I get two accidentals in a row: first a
> natural and right to it the sharp. There is no need of the natural, it only
> disturbs.
> 

This has been fixed for version 2.14.2

Specifically, given input
   { \key bes\minor gis' eses' es' }

LilyPond prints single sharp for the gis, but prints a natural-flat
for the es, unless you change extraNatural to #f as David indicated.

The thinking is that classical-period music often wrote the extra natural
when a single-flat followed a double-flat, presumably because it looked 
strange to write a flat alone when the pitch is /raised/ relative the last
instance of that note, especially when compared to the use of relative 
accidentals in baroque music.

A sharp following a flat was much less common in the classical period, 
so there is no clear standard notation for that case.   I believe there 
are zero users who want LilyPond to automatically insert an extra natural 
between ges and gis.