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Re: another route from MIDI to lilypond (from NtEd developer)
From: |
Martin Tarenskeen |
Subject: |
Re: another route from MIDI to lilypond (from NtEd developer) |
Date: |
Mon, 28 Sep 2009 12:22:55 +0200 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
On Mon, Sep 28, 2009 at 11:19:26AM +0200, Joerg Anders wrote:
> A word from NtEd developer:
>
> On Sat, 26 Sep 2009, Laura Conrad wrote:
>
>> A quick test on the same MIDI file as earlier shows that it spells Bb
>> wrong, and doesn't correct it if I edit the key signature.
....
> bes'4 c d es | % 2
> f g a bes | % 3
....
> Which in turn creates a correct Bb scale. What is misspelled ? "bes" ?
Hi Joerg and Laura,
I think I can explain the problem.
You are using a correct MIDI file with the key signature in the MIDI
meta events.
The MIDI file examples that Laura is using (she mailed them to me)
contain Bb/A# notes but do not contain (a correct) Key Signature MIDI
Meta Event. In MIDI there is no simple way to see the difference between
A# and Bb (It's just a note number) if such a Key Signature MIDI Meta
Event is not present or is simply giving a default "C Major".
That's why midi2ly has a "--key=..." commandline option. Unfortunately
this option is not working ( The commandline key-signature is
overwritten by the one in the MIDI meta events). I'm looking into it to
solve this problem.
One workaround that sort of worked for me: I converted Laura's file with
midi2ly (unreleased version), edited the ly file to include \key d
\minor in all parts and a midi{} block, created a new midifile with it,
ran midi2ly on the new midifile, and finally I was having a ly file with
Bb instead of A#. We don't want that, right ?
If I succeed in fixing this problem plus the problems with long notes,
ties-across-barlines, and barcheck calculations when meter changes, I
think we will have a pretty usable midi2ly utility ...
--
Martin Tarenskeen
- Re: another route from MIDI to lilypond (from NtEd developer), Joerg Anders, 2009/09/28
- Re: another route from MIDI to lilypond (from NtEd developer),
Martin Tarenskeen <=
- Re: another route from MIDI to lilypond (from NtEd developer), Martin Tarenskeen, 2009/09/28
- Re: another route from MIDI to lilypond (from NtEd developer), Laura Conrad, 2009/09/29
- Re: another route from MIDI to lilypond (from NtEd developer), Joerg Anders, 2009/09/29
- Re: another route from MIDI to lilypond (from NtEd developer), Laura Conrad, 2009/09/29
- Re: another route from MIDI to lilypond (from NtEd developer), Joerg Anders, 2009/09/30
- Re: another route from MIDI to lilypond (from NtEd developer), Laura Conrad, 2009/09/30