Calculate chords with an arduino

Grumble · Posted: Tue Sep 20, 2016 12:13 pm Post subject:

Giving each Arduino a different name is totally possible as long as they have a 16u2 on board (that goes for the UNO and MEGA Arduino's). I have tried it this afternoon and it'll work!

And why I stay with the 80's baudrate is because I have old keyboards and electronics I use that is still 31.25 kbaud.

MusicMan11712 · Posted: Tue Sep 20, 2016 2:35 pm Post subject:

Grumble · Posted: Tue Sep 20, 2016 11:37 pm Post subject:

Even the 8u2 can be programmed acting as a midi device, though at 31.25kbaud. (I don't know how your arduino/atmega skills are, but this is to program the ATMEGA8U2 and NOT the ATMEGA2560 and/or the ATMEGA328)
Only downside is that You can only use one Mega at a time, because they all have the same name (HIDUINO).
I have added the hex file for this to this post, but you may also look at the link I added B4.

arduino_midi.hex

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Grumble · Posted: Tue Sep 20, 2016 11:57 pm Post subject:

Just realised: the website where you can "pimp your hiduino" is also based upon the code from Dimitri Diakopoulos, so my guess is that it also works with the 8u2, maybe you can try this?
If it fails, you can still revert to the standard MEGA by flashing usbserial_mega_8u2.hex in the 8u2 residing on your MEGA (also found on the github from DDiakopoulos.

Grumble · Posted: Wed Sep 21, 2016 12:24 am Post subject:

http://www.hooktheory.com/blog/chord-progression-search-patterns-and-trends/

Rolling Eyes

MusicMan11712 · Posted: Wed Sep 21, 2016 9:05 am Post subject:

Cfish · Joined: Feb 24, 2016 Posts: 477 Location: Indiana

At the risk of sounding like an idiot. What would be the purpos of having the microprocessor decide the next cord in the music?

I'm in to pretty traditional folk type music. So I'm sure I'm just not grasping the Purpos. However I am very curious, and would love to understand the utility behind the idea.

Another very ambitious project grumble. Looking forward to see where it goes.

Grumble · Posted: Wed Sep 21, 2016 10:05 pm Post subject:

Well to keep me busy is the most importand reason to do this Wink

But from a musical point of view the reason I started this is: Say you have a sequencer slowly playing a sequence of four notes (or eight, or.....) and than have a module transforming each note into a sequence of triades that sounds oke or even good and slowly changes in time without user interference.
Like an arpeggiator fed with notes from a sequencer or keyboard that produces a number of triades that fit the given notes...
How cool is that?

Cfish · Joined: Feb 24, 2016 Posts: 477 Location: Indiana

Pretty darn cool.

You have great ideas grumble

Grumble · Posted: Sun Nov 13, 2016 1:47 am Post subject:

to show that I'm still working on this idea...
One music generator (YM2149) wired, time to start coding to see if I can get it to work.
After that: three more generators to wire...

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Cfish · Joined: Feb 24, 2016 Posts: 477 Location: Indiana

You do really neat work grumble!

Grumble · Posted: Sun Nov 13, 2016 10:24 am Post subject:

The first sound generator seems to work, it reacts to code...

there_be_sound.wav

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And we have sound...

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Grumble · Posted: Fri Dec 30, 2016 8:39 am Post subject:

I quit with the approach to this project.
The three psg's are working, but there is only one envelope per chip (= three voices) so it is not going to work.
But I don't give up, so I've ordered some new chips being some YMF262, which is an FM Operator chip and see what I can do with this type of psg.