Re: [Denemo-devel] chords

[Richard Shann]

On Sat, 2016-09-03 at 08:23 -0400, Nathan Stewart wrote:
> I think you can do ties as well if you use note offs.

Yes. In this case however I'm just piggy-backing on the current note
entry system. So, for example if you have several bars of rhythm entered
and you play a chord, the cursor goes back to the start of the rhythm
and enters the chord there.

This problem with entering chords on a tied rhythm is not exactly new to
this filter, it also applies if you are using the sustain pedal or the
ALT key to enter chords. In that case it is a little more gracious as it
fills in the first of the tied chords (and the root note of the others)
so repeating the chord for the tied occurrences is quite pleasant.
I've not looked deeply into what is going on with the new filter entry
method, but my guess is that the continuation onto the other tied notes
happens before the filter gets control back, so you end up filling in
the last of a tied rhythm and would have to work backwards to fill in
the other notes :(

Anyway, if people think this might be useful I'm sure it can be tweaked.
(Alternatively a completely scripted route could be taken, avoiding the
built-in MIDI entry routines altogether).

Richard




>  At least one
> note would have to change to enter two chords with a held note between
> them, but I don't think that's a huge limitation, nor unintuitive.
> So as note on's come in, they are added to the chord. When notes are
> released it means any new note on after that is part of the next
> chord.
> 
> The other thing that could work is to look at the arrival window. MIDI
> time may not be advancing in this mode, but notes that arrive more or
> less together are part of one chord.  Any events, on or off that
> arrive outside that window are "new".  Human reaction time is
> something around 200ms. A window that big would be clunky in real
> time, but is probably a good starting point for note entry mode.
> 
> Another thing that could work is to use the pedal as the note
> advancer. I think that could be less intuitive than time arrival
> window though.
> 
> On 9/3/16, Richard Shann <address@hidden> wrote:
> > On Fri, 2016-09-02 at 23:01 +0000, Andreas Schneider wrote:
> >> Actually, I don't know if MuseScore has a minimal time feature. I did not
> >> find any information about that on their web site.
> >>
> >> The music I'm entering often involves chords. Maybe I'll try to write
> >> something in Scheme when I've got time. My first idea is to track the
> >> number of pressed keys from the note on and note off messages.
> >> However, an implememtation in C would have the advantage that it could be
> >> combined with another input filter.
> >> One could also look at the MuseScore code how they do it to get some
> >> ideas.
> >
> > Well, I've just put a MIDI filter into git that adds chords on the basis
> > of waiting for note off signals. The only thing I know it fails with is
> > tied notes.
> > Input->MIDI->Chord Entry Without Pedal
> > If you think it could fly it might be worth tweaking it...
> >
> > Richard
> >
> >
> >
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