On 07/15/2017 06:10 AM, martin wrote:
Hello all,
When I select a Midi/Drum track in the arranger, I can toggle between seeing
the trackinfo as a bunch of entry fields
and buttons (alt checked) and something that looks more like a mixer strip (alt
not checked).
With the entry fields in the alt display, I can, among others, set volume an
pan and make it part of the song by
clicking on the respective button. A corresponding midi event is inserted at
the current locator position. I can achieve
the same thing by editing the volume or pan controller in a part editor, e.g. a
pianoroll…
(1) With the non-alt display I can't seem to save volume and pan, or can I?
Yup. Right-click any midi GUI control, such as volume, pan,
or the other knobs on a midi strip, and under the 'automation'
heading, select 'add event' or 'erase event'.
The 'alt' panel is a relic, soon to be removed, before release 3.
It is what existed before MusE got a proper midi strip in the Arranger.
I left the 'alt' panel there as work progressed on the midi strip,
in case there were problems with the new strip.
(2) So what is the effect of volume and pan changes in the non-alt display?
Does it set default values, which will be
effective before the first explicit volume or pan event?
No. Default values are the job of the defined midi instruments and which
instrument is chosen for the particular track, such as GM or XG etc.
If you examine an instrument's defined midi controllers in the
Instrument Editor, you will see that each can be assigned a default value.
Some have a default, and some do not.
These default values are sent out as midi messages to the
devices at certain times, such as when a track's instrument is changed.
Another important time when these messages are sent:
When a song is first loaded, or rewound to the beginning.
This is because some songs did not store all necessary 'starting'
controller values at the song's beginning, and thus if rewound,
some controllers will be left in whatever state they were before
rewinding,
which may make the song not sound correct when it is played again,
so default values are taken from the instrument definitions to give a
reasonable controller setup before playing the song through.
However, some users may not want this behaviour, so it /must/ be enabled
by the user in 'MusE settings > Global Settings > Midi tab >
'Send instrument controller default values if none in song, at init or
rewind'".
As that name implies, if the song does in fact have explicit stored
controller values at time zero, /those/ values will take priority over
any defaults, when the song is loaded or rewound.
Therefore, a rule of thumb, best practice when composing any midi song:
Make sure all of your desired controllers have explicit values stored at
time zero.
Otherwise you leave it to the host to find something reasonable to send.
Hope that helps.
Tim.
Should that be the case, then it is a bad idea to use both
methods on the same midi channel, because in the end, the explicit setting will
soon override any defaults.
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