Hello,

I would like to be able to do trills on my midi keyboard like I do on an analog synth : keeping one key pressed down while only pushing the second one. Since it is an analogsynth, the ouput voltage changes when I release the trilling key, but a midi note beeing a one shot message, I can't achieve the same result. I tried to find another midi controller that would send continuous messages as long as a key is depressed but couldn't find one. Aftertouch would be good for that I suppose, but it needs some pressure not compatible with natural playing. Anyway, I tried to alternatively write on the two indexes of an array with the hope that I could somehow get the tabread object to go back to the previous note, but since there is no way of checking if a continuous message is sent, there is no way to tell PD to stop writing at say index 0 because that note is held, just write index 1 and alternate reading from 0 to 1 if that makes sense.

I tried to analyse the miniwoog patch to see if I could find a solution in there somewhere as it seems to support all kind of note priority and legato mode but couldn't find anything that I would understand.

Here is the patch :
Key input.pd

Thank you for any help.

hi, you can see my solution for this problem here: https://github.com/sebshader/instr in the 'monoctl' abstraction.
internally it uses an object from my library [noteson] that keeps track of which keys are pressed and I haven't been good about updating the releases so you'd have to compile it yourself..
you could also try making your own abstraction to use a list to keep track of currently pressed notes instead.

I think the 'else' library may also have some solution in its 'mono' object: https://github.com/porres/pd-else

@seb-harmonik.ar Thank you ! The mono object in else library does exactly that indeed. The only downside (if one can call it a downside) is that it is working so well by itself that I didn't have to learn anything or scratch my head gazing at the voïd of my logical sense to implement it. It seems to be a fantastic library though.

@kosuke16 said: that I didn't have to learn anything

very well tracked down.

and now... build your own version.

framework:

1. first take care about what it should mean when midi note events come in. don´t forget to handle a possible third key pressed down.
2. build the trillo events to output.
3. connect the two parts.

@kosuke16 for years I built complex data structures like maps and sets using lists in pd. But things like this are much easier to write using a textual language like Lua (using pd-lua) or even as a c external. Mainly because of accessing object-local data where it's used

@seb-harmonik.ar Following your reply, I read a lua tutorial today. It seems very interesting and in a way more direct than PD itself. But I have much to learn about the existing libraries already, objects and logical thought process before going into text programming. And I also have to make music sometimes. I rediscovered my old synth with the midi/CV patch I made.

My next project is a simple sequencer based on EDO scales, I think it will bring me further into the arrays / mathematical side of PD. Lots of head scratching to be had. Then I have to learn to put everything into subpatches to build my midi/CV interface according to my needs. Then I have to tweak it and make a version for each of my other synths because tuning, gate voltage etc…

The rabbit hole is deep enough to delay the learning lua a bit for now.