Re: External MIDI controller track/instrument in Matrix Editor

   This feels to me like a bug.

   In Step Recording mode, Matrix should take over the keyboard and 
route the note to the selected Segment's device/channel (Instrument). 
It shouldn't go through the usual main window routing.  Of course, this 
could get confusing when a user forgets to turn off Step Recording.  Or 
what if you have both a Notation and a Matrix editor open and both in 
Step Record?

   How does Notation behave in step record?  Same problem?

Ted.

On 2/14/22 4:50 PM, mark_at_yahoo via Rosegarden-user wrote:
> When editing multiple tracks simultaneously in the Matrix Editor, is 
> there any way to have an external MIDI controller's Note On and Note Off 
> messages sent to the channel associated with the ME's active segment/track?
> 
> Configuration:
> Linux
> Rosegarden 20.06.1 (built from SourceForge git sources)
> External MIDI controller (MIDI only, no synth, no audio, USB to computer)
> fluidsynth
> ALSA (no jack): MIDI controller -> Rosegarden -> fluidsynth
> No direct ALSA connection from MIDI controller -> fluidsynth
> 
> 
> Workflow:
> 1) New Rosegarden project
> 
> in main interface ...
> 
> 2) Set tracks 1,2,3 using "Track Parameters, Instrument" each to a 
> different Program number by using "Instrument Parameters, Program". Each 
> track will play a different MIDI instrument.
> 
> 3) Create segments on tracks 1, 2, and 3
> 
> 4) Select track 2 ("Click to select all segments on this track")
> 
> 5) Pull down "Edit -> Select All Segments (CTRL+A)"
> 
> 6) Click "Open in Matrix Editor (M)" icon
> 
> in Matrix editor ...
> 
> 7) Using lower left "Rotate wheel to change the active segment", change 
> to Track 3. Main interface still has Track 2 selected.
> 
> 8) Draw tool is active by default (or click to activate).
> 
> 9) Using mouse or computer QWERTY keyboard, create a note. Note is in 
> Track 3 segment. Fluidsynth plays note with Track 3 instrument.
> 
> 10) Click "Step Recording" icon to activate
> 
> 11) Play note on external MIDI controller. Note is created at cursor 
> position in Track 3 segment, but fluidsynth plays note with Track 2 
> instrument because Track 2 still selected in main interface.
> 
> 12) Click "Rewind to Beginning" icon, click "Play" icon. Fluidsynth 
> plays all notes correctly with Track 2 instrument, regardless whether 
> they were created using mouse, QWERTY, or external MIDI controller.
> 
> 
> IMO this makes it difficult to use "Step Recording" to edit multiple 
> tracks simultaneously in the Matrix Editor. The user either has to go 
> back to the main interface to manually select the correct track each 
> time the active segment is changed Matrix Editor, or accept the fact 
> that the wrong instrument will play when using an external MIDI 
> controller to enter notes. Editing multiple tracks is useful for 
> visualizing the composition's harmony.
> 
> I've tried many combinations of the main interface's Track Parameters 
> Recording Filters settings: Device (All, Midi input system device), 
> Channel (All, 1-16) and Thru Routing (Auto, On, When Armed), and the 
> Instrument Parameters settings: Channel (Fixed, Auto). Is there any way 
> to have the Matrix Editor automatically set the correct instrument, or 
> does this fall into the Feature Request category?
> 
> 
> 
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