Am 24.11.20 um 11:40 schrieb David Kastrup:
> Hermann Meyer <brummer-@web.de> writes:
>
>> Mamba release v1.9 is out
>>
>> Mamba is a Virtual MIDI keyboard with some extended, unique features.
>>
>> This is a quick fix release as I've forgotten to implement jack MIDI
>> input forwarding to ALSA MIDI output.
> Stupid question: I see you implemented different national keyboard
> layouts that basically define a mapping from characters to physical key
> positions. I think that raw X11 key events might actually encode key
> positions (or numbers based on a particular arrangement of keys) but
> maybe they are not easily available at the layer your key events arrive.
>
> But the actual question is a different one: have you considered offering
> a chromatic button accordion arrangement "on top" of that national
> remapping?
>
> Basically it would mean that a chromatic scale is encoded as
>
> zsexdrcftvgybhunjimko,lp.;[/'] for C system (with a qwerty keyboard,
> starting at C) and
> qazwsxedcrfvtgbyhnujmik,ol.p;/ for B system (again, starting at C).
>
> Finnish G system uses the same scale as C system apart from starting
> with C♯ rather than C in the first row. I can provide images if
> necessary (there are some at
> <https://en.wikipedia.org/wiki/Chromatic_button_accordion>).
>
> Modern CBA keyboards tend to have 5 rows but the inner 2 rows are
> repeats for making transposition and chord fingerings easier and
> basically every player can get along without them at least when doing
> note entry. So whether to offer more than 3 rows depends on whether
> there is an actual use for the numbers and function keys.
>
> The main advantage for CBA players of course is easier entry. The main
> advantage for everyone else would be access to more notes at the same
> time.
>
I've now implemented the possibility to define 2 keys per note within
the Keymap Editor. That enable you to setup a chromatic button
accordion arrangement for Mamba.
_______________________________________________
Linux-audio-dev mailing list
Linux-audio-dev@lists.linuxaudio.org
https://lists.linuxaudio.org/listinfo/linux-audio-dev
Received on Wed Jan 6 04:15:01 2021
This archive was generated by hypermail 2.1.8 : Wed Jan 06 2021 - 04:15:01 EET