Dear list,
When exporting a simple track, just containing 4 notes (B B# A# Cb) the
resulting Music XML file looks like:
<note>
<pitch>
<step>B</step>
<octave>4</octave>
</pitch>
<duration>960</duration>
<voice>1</voice>
<type>quarter</type>
</note>
<note>
<pitch>
<step>C</step>
<octave>5</octave>
</pitch>
<duration>960</duration>
<voice>1</voice>
<type>quarter</type>
</note>
<note>
<pitch>
<step>B</step>
<alter>1</alter>
<octave>4</octave>
</pitch>
<duration>960</duration>
<voice>1</voice>
<type>quarter</type>
<accidental>flat</accidental>
</note>
<note>
<pitch>
<step>B</step>
<octave>4</octave>
</pitch>
<duration>960</duration>
<voice>1</voice>
<type>quarter</type>
<accidental>natural</accidental>
</note>
The first note is okay. The second note looks strange, in Rosegarden it was a
B#, in the XML file is became a C. I can live with this but it not 100%
correct.
The next note however is wrong. The A# in Rosegarden now becomes a B# !! The
added <accidental>flat</accidental> seems to be ignored by programs reading
MusicXML, like mscore. It know yet what to purpose of this item is, I have to
dive into MusicXML in more detail.
It seems the problem is in MusicXMLExporter::writeNote(). There a pitch is
created:
long p = 0;
e->get<Int>(PITCH, p);
pitch = p;
However this construction ignores the event property "accidental".
Replacing this code by
pitch = Pitch(*e);
now correct notes are in the MusicXML file.
<note>
<pitch>
<step>B</step>
<octave>4</octave>
</pitch>
<duration>960</duration>
<voice>1</voice>
<type>quarter</type>
</note>
<note>
<pitch>
<step>B</step>
<alter>1</alter>
<octave>5</octave>
</pitch>
<duration>960</duration>
<voice>1</voice>
<type>quarter</type>
<accidental>sharp</accidental>
</note>
<note>
<pitch>
<step>A</step>
<alter>1</alter>
<octave>4</octave>
</pitch>
<duration>960</duration>
<voice>1</voice>
<type>quarter</type>
<accidental>sharp</accidental>
</note>
<note>
<pitch>
<step>C</step>
<alter>-1</alter>
<octave>4</octave>
</pitch>
<duration>960</duration>
<voice>1</voice>
<type>quarter</type>
<accidental>flat</accidental>
</note>
I'm willing to create a patch but I still have another problem. Now at least
the notes are correct (B B# A# Cb) but the B# is one octave too high and the
Cb is one octave too low. It looks to me Pitch::getOctave(octaveBase) is doing
something strange because it ignores the pitch accidental. But this method is
called in several places and I'm not sure what will be broken when changing
this. Maybe somebody can comment on this?
Best regards,
Niek.
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