Re: Transposing instruments

[Gilles Sadowski]

On Fri, Jun 08, 2012 at 02:03:49PM +0200, David Kastrup wrote:
> Gilles Sadowski <address@hidden> writes:
> 
> >> oboe      = \relative c'' { \key g \minor      d16 d8. ~ d4 }
> >> clarinetB = \relative c'' { \transposition bes c16 c8. ~ c4 }
> >> hornF     = \relative c'' { \transposition f   d16 d8. ~ d4 }
> >> 
> >> \score
> >> {
> >>   <<
> >>     \new Staff \with { midiInstrument="oboe"        } { \oboe }
> >>     \new Staff \with { midiInstrument="clarinet"    } { \clarinetB }
> >>     \new Staff \with { midiInstrument="french horn" } { \hornF }
> >>   >>
> >>   \layout {}
> >>   \midi {}
> >> }
> >> 
> >> I think this is straight forward as the \transposition affects the
> >> MIDI output only. And: it's well documented, I must admit.
> >> http://www.lilypond.org/doc/v2.15/Documentation/notation/displaying-pitches#instrument-transpositions
> >
> > It is not more coding; and it is more efficient in the long term
> > (maintenance): the more you separate contents (notes) from layout (\key,
> > \transpose, \transposition), the eaiser it is to change one or the other.
> 
> >> >     \transposition bes { % make MIDI sound right
> >> >       \transpose bes c { % transpose to clarinet notation
> >> >          <<
> >> >            \global
> >> >            \transpose c bes { % transpose to concert pitch
> >> >             \clarinetNotes
> >> >            }
> >> >          >>
> >> >        }
> >> >      }
> 
> If you really, really, really want to have the key from the default
> declarations, it is much more straightforward to write
> 
> \transposition bes % This does not take an argument, it is a declaration

Thanks for the info.

> << \transpose bes c \global  % default key shown in clarinet transposition
>    \clarinetNotes
> >>

TIMTOWTDI, as they say in a language that was not yet suggested in that
other thread. ;-)


Gilles