Re: MIDI and transposing instruments

[Peter Chubb]

>>>>> "Francisco" == Francisco Vila <address@hidden> writes:

Francisco> 2009/6/5 bernie arai <address@hidden>:
>> i'm trying my hand at finally using the midi output of lilypond to
>> audition my scores (instead of relying on my horrid piano playing).
>> after a bit of messing around, and a while looking through the
>> docs, i'm a bit stumped as to what to try next.  i've defined
>> instruments for example:
>> 
>>     tenorsax = \transpose c d' \relative c { % tenor notes (in
>> concert pitch) }

Francisco> Please use \transposition for this.

Francisco> 
http://lilypond.org/doc/v2.12/Documentation/user/lilypond/Displaying-pitches#Instrument-transpositions


\transposition doesn't sit well with MIDI output if you're going to do
further transpositions.  

Try:
\version "2.11.62'
clarinet = \transpose bes c' { \transposition bes bes1 }
flute = { bes1 }

\score {
        \transpose c d' <<
                \new Staff \clarinet
                \new Staff \flute
        >>
        \midi {}
        \layout{}
}

You'll hear a discord instead of the unison you expect.

--
Dr Peter Chubb  http://www.gelato.unsw.edu.au  peterc AT gelato.unsw.edu.au
http://www.ertos.nicta.com.au           ERTOS within National ICT Australia