All:
This afternoon I ran into a problem I have not seen before.
The problem happens on the development-snapshot version of Rosegarden as
well.
I created several MIDI files from a single Rosegarden file, by deleting
all the tracks but the relevant track for the MIDI file's purpose. I
left in the first track (which had no actual notes in it). Originally,
the notes in the relevant track were different channels (going up to 16,
skipping 10).
I decided that was confusing, so I changed each MIDI file (editing with
Rosegarden) so that the relevant track used MIDI channel 2.
So far, so good.
Later, in trying out the actual lessons, I decided there was no need to
leave MIDI channel 1 unused, and that it would actually confuse the
user.
So I went through editing the MIDI files using Rosegarden, and
re-exporting the (edited) MIDI file.
In each of them, I changed the MIDI channel to 1 (having also to
re-specify the instrument of the track - a pain, but acceptable).
But when I went to use them in my MIDI software, it showed that the MIDI
channel was still 2 (not 1, which I had just changed each one to).
I repeated the process using the development-snapshot version of
Rosegarden. As I loaded each MIDI file, it showed that the file's track
did indeed use MIDI channel 2. So I changed the MIDI channel to 1, and
re-exported the MIDI file, doing this for each of the several files.
When I went to use them, it still showed that the MIDI channel was 2
(not 1). When I reloaded the MIDI files into Rosegarden, it also showed
that the MIDI channel (of the one and only track) was still 2 (not 1),
so all that work I did had no effect.
I then loaded these same MIDI files into MusE, and noticed a difference.
When I loaded them in MusE, there were actually two tracks displayed:
Track 1, and Track 2. In Rosegarden, it only showed a single track, but
apparently there was still a Track 1 (that I thought I deleted) left
lying around.
When I edited the MIDI files using MusE, deleting Track 1, and changing
the remaining track to use MIDI channel 1, it worked. My software
showed that the MIDI files did indeed use MIDI channel 1.
Furthermore, when I loaded those same files into Rosegarden, it now
showed that the MIDI channel was indeed 1 (not 2, as it was doing
before).
So the problem (to make it brief) is that I could not edit imported MIDI
files with Rosegarden to set the MIDI channel to 1. Apparently there is
an invisible track 1 left in the sequence preventing the editing change
from working.
--
Sincerely,
Aere
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