Any ideas?
]]>Following the instructions of pianist Marc-André Hamelin, I practice many passages with symmetrical inversion (https://practisingthepiano.com/symmetry_in_practice/)
Unfortunately it sound horrible !
Is there a way to map the keyboard the following ways;
-Mirror on D 4
Mirror on Ab 3
Invert the entire keyboardThank you for your help!
Daniel
Not sure if anybody has done this already, but you can do it yourself very easily with many tools, as follows:
- connect your keyboard to computer using one MIDI channel (say 1)
- use a piece of software in the computer reading from that MIDI channel, doing the transform and spitting out results in a different MIDI channel (say 2)
- set up pianoteq to play only in response to the second MIDI channel (what I have called 2 in the example above)
How to do "the transform"? Pretty easy: for example in Python you can use the mido module, read all data from MIDI channel 1, and write the same data out in MIDI channel 2 *changing only* the note number. If you wanted to "flip" the keyboard completely you will change note number "n" into "127-n", so extremely easy. You may need to use a different number rather than 127 since IIRC the piano keyboard is not in the middle of the MIDI range. How? Simple, middle C is n=60 the C# one semitone up is 61 and the D one other semitone up is n=62. If I understand your requirement correctly, you would like this note to remain the same (if not, just use another note -- or pair of notes -- for the following). You want
m = x - n
where
m is the new note number,
n is the old note number, and
x is the unknown transpose factor
In the example above we want n=62 be mapped to m=62 so we have 62=x-62 and hence x=124 (rather than my first guess of 127, which would still sound good, but transposed by 3 semitones).
Have fun!
PS: I also do a similar kind of practice, but not by playing whole pieces this way.... just doing improvisation on keyboard sections, following the wonderful Phil Best's guidance
]]>Thank you for your help!
Daniel