Hello fellow music enthusiasts and tech aficionados,

I hope this message finds you well. I come to you with a puzzle that has been occupying my mind, and I believe your collective wisdom could help me find the missing piece.

As a self-taught musician and tech geek, I have been diving into the world of MIDI data manipulation within Pure Data Extended. My current project involves a web of message objects that transmit MIDI data using Arduino serial connections. It's a fascinating journey, but as with any adventure, there are hurdles to overcome.

Here's the challenge I'm currently facing: I'm looking to implement a seamless transition in my setup. Imagine this - with a simple click of a button (or "bang," as we call it in the world of Pure Data), I want to send out another "bang" to a different message object or perhaps a number object, whichever is more suitable for the process at hand. This second "bang" will then work its magic to shift the currently playing note by 12 semitones, effectively transposing it.

Now, I won't pretend that my patching skills are perfect. In fact, I'm running into a curious issue where things seem to behave oddly. I suspect it might be related to how I'm connecting the notes to individual bangs, each linked to separate noteout channels. Yes, there's just one button involved (for now), and I confess, it's acting a bit like a diva on stage!

Here's a bit more context: I'm using Pure Data Extended, as I followed some video and tried it out, couldn't use in latest pd versions, particularly when dealing with larger patch configurations. However, I'm encountering problems when it comes to certain objects like 'iem_alisttosym,' 'zl group 100,' 'fromsymbol,' and others. The console log kindly informs me with a 'couldn't create' message, which has led me to believe that I might be missing something crucial.

This is where I turn to you, the creative minds of the forum. I'm keen to hear your thoughts, insights, and perhaps some innovative workarounds. How can I make this setup run as smoothly as a well-composed symphony? What are your preferred approaches to MIDI data manipulation, especially in situations like mine? And if you've ever danced with the laggy GUI dragon in Pure Data Extended, I'm all ears for your advice on keeping things both functional and visually pleasing.

So, dear forum members, what say you? Your guidance, suggestions, and expertise would not only help me solve this enigma but also inspire others who might be navigating similar terrain. Let's make music and tech collaborate harmoniously!

Thank you in advance for your time and consideration. Your insights could very well be the melody my project needs to hit the right note.

Musically yours,
Gazzy

I would go the route of updating old pd-extended patches to be compatible w/ modern pd instead of using pd-extended. Pretty much all of the old libraries are on deken afaik. That will position your patches to take advantage of any/many modern improvements to pd.
it can be a headache to add all of the [declare -lib x -path x] arguments, but it will be worth it later, especially if you are the author and don't have to refactor some other code.
you could try uploading what you have so far so we can get a better idea of what you're trying to accomplish (w/ comments?).
if the issue is transposing a currently playing note, I guess you could just do a note off before a note on. Or if there's pitchbend you could try using that. Really, it depends on what kind of synth the midi is connected to and its capabilities as far as per-voice stealing/gliss goes.
Maybe your midi synth has some control for octave that you could simply send from pd..

@seb-harmonik.ar

Hi there,
Thank you for the quick response.

You are right, I so really want to use the latest PD variant.

But, here the problem:-
https://imgur.com/a/rH4Kzo5
As you can see the first picture with the errors are the latest Pd v0.54-0

and the one im working with (2nd screenshot) is pd-extended ( I even had to downgrade to macos Mojave to support it lol

Once I have this part figured out, I will post the whole screenshot of my patch with comments and show you what i'm working on. It can be done with note-off but im just not sure too much going on the screen and like i said, things get laggy on any hardware specially when or if using Ableton or any other software with PD.
Pd 0.54 works fine i have tested with big patches.

Seeking out more answers from you all! thanks.

@gazzyjuruj You need to install the externals required and then declare the symbols in the patch. To install externals go to menu help->find externals and search for the missing objects which will bring up a list of libraries which contain objects with that name, install them. Then add [declare] for that object, the [declare] helpfile will explain its use. This is a much better setup than the extended way of just trying to include all externals, more portable and the [declare]s means anyone who downloads the patch will know exactly what libraries you used so they do not need to hunt for them.