Chord Scannng question

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Lee
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Chord Scannng question

Post by Lee »

Well, I have a question on chord scanning. I have researched the manual and can't get the detail I want.

This is in full keyboard scanning mode:

If I have the lower AND upper chord scanning buttons on (split off), I thought I could play any part of a chord anywhere on the keyboard and it would detect the chord?

Seems to not work that way on my PA2XPRO V2.

The chords get detected fine on the lower part or the upper part, but not in combination.
Example: I hold C2, and I hold E5 and G5...it does not detect the chord.

So, when playing piano style it seems like a problem to me?

Is it working correctly? Maybe I just don't understand how to gt the chords when playing a bass note (maybe low string sound) with my left and a couple of higher stringsounds with my right...to get the chord.

Any help is appreciated,
Thanks,
Lee
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keith-helen
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chord scanning

Post by keith-helen »

Lee

on disc 1 of Korg arranger secrets "Keyboard modes" it discusses this situation for the PA1X.

I do not know whether this is the same for your machine, however,

you may wish to try pressing the split point and and make sure that the chord scanning function is set to 3 finger or expert.

Its worth a try

Keith Lawton
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Lee
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Post by Lee »

Keith,
Yes, I have the 3 DVD set and I have looked at that part.
Thats why I am asking because it sure seems like he says it will use lower and upper TOGETHER to detect the chord.

It does use lower and upper, but not the two together. Is that normal? Please try it on your PA1.

The manual says in FULL UPPER mode the PA2 forces 3 finger mode ( my normal mode is expert).

Lee
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Rob Sherratt
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Post by Rob Sherratt »

Hi Lee,

On Pa2x OS1.11 when I press upper and lower so they are both lit, and I am in "advanced" chord recognition mode, then "advanced" chords are recognised across the whole keyboard no matter where the notes are played.

This has been my modus operandi for most the last year.

I have not yet upgraded to OS2, though maybe Korg Labs will do it for me.

Regards,
Rob
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Lee
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Post by Lee »

Rob,
OK, I'm beginning to feel like a real dumbkoff here!

I have both upper/lower leds on, expert or 3 finger mode (fails either way).
As a simple example
I play a C3, and a E5 and G5...NO chord recognition happens. If I play C chord in the lower or upper area...works fine.

Am I missing something here? Or are 'normal' chords supposed to be recongized in this mode?

Thanks,
Lee
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Post by abo59 »

Hello,

I have a Pa2x Pro and OS 2.0.

- With chord scanning set to Split+Lower it scans over the entire lower area.
- Set to Split+Upper or Full (lower+upper), the active scanning area is limited to 16 half-steps.

So, yes... there seems to be a bug with OS 2.0.
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Rob Sherratt
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Post by Rob Sherratt »

Lee wrote:Rob,
OK, I'm beginning to feel like a real dumbkoff here!

I have both upper/lower leds on, expert or 3 finger mode (fails either way).
As a simple example
I play a C3, and a E5 and G5...NO chord recognition happens. If I play C chord in the lower or upper area...works fine.

Am I missing something here? Or are 'normal' chords supposed to be recongized in this mode?

Thanks,
Lee
Hi Lee,

What you are describing seems like a fault, this is not how it works under OS1.11 or on the Pa1x. Like I said I was using full keyboard scan mode with advanced chord recognition all the time up to the point I sent my Pa2x back to Korg Labs 2 weeks ago. I could play notes of chords anywhere on the 73 note keybed and the advanced "Jazz" chord would be correctly identified.

Perhaps you could ask Jerry to try it on his keyboard?

Best regards,
Rob
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Jackpote
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Post by Jackpote »

abo59 wrote:Hello,

I have a Pa2x Pro and OS 2.0.

- With chord scanning set to Split+Lower it scans over the entire lower area.
- Set to Split+Upper or Full (lower+upper), the active scanning area is limited to 16 half-steps.

So, yes... there seems to be a bug with OS 2.0.
Hi,

tested today on my Pa2x, you're right !
Jacques
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Rob Sherratt
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Post by Rob Sherratt »

Hi all,

Here is some feedback as a result of correspondence behind the scenes with Korg Labs ... I'm sorry I was unable to do the testing myself but as you know I don't have my Pa2x currently ...
  • a) Please set your Pa2x to Expert chord recognition mode and ensure that the option is saved and locked from being changed by style and performance changes. Now, select both Lower and Upper LED's ON so the full keyboard scanning mode is also enabled.

    b) Select Style Play mode, Memory ON, and Start.

    c) Play C3, Eb5, G5 and B5 simultaneously.

    d) Please verify that Cm(M7) is displayed on screen and that chord plays in the style. It used to be displayed as C minMaj 7.

    e) Now play B3, D5, Gb5 and Bb5.

    f) Please verify that Bm(M7) is displayed on screen etc.
I don't think there is any problem is there? In Expert mode, the notes of the chord can be played anywhere on the keyboard. There is no restriction to a range of 16 consecutive semitones.

Also I was asked to say that if any of us think there is a problem in OS2.0 then could we firstly please do a direct comparison using the same settings using the previous version of the OS? If there is a difference between the two OS versions then it will be investigated. If it's the same behaviour in the two OS versions then it's a "new feature request" which is a bit too soon to consider.

Many thanks,
Rob
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Lee
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Post by Lee »

Rob,
I tried 'exactly' what they said. Yes it works...But regular old simple chords do not. Maj, Min, Maj7, Min7 etc

Example:
c3, e5, g5 = should be c maj.. but no chord reognized...maybe this is the way it is supposed to be?

One more note...it looks like they did change some of the chord recognition, Don said that now he can do walking base on the left side of split and it works nicely in expert mode. before it screwed up the chords.

Lee
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Rob Sherratt
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Post by Rob Sherratt »

Hi Lee,

Is manual bass turned on? That might explain it if so. Otherwise, could you note all current settings, then revert to OS1.11 to verify if there is any change in behaviour with OS2.0?

Korg Labs said to me in the recent correspondence that there is no change in chord recognition behaviour compared with OS1.11 apart from the notation symbols. I think we have to do some more testing to be sure of our facts before we upset everybody. Sorry I can't assist in this at the moment, you know why.

Best regards,
Rob
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Lee
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Post by Lee »

Rob,
I reverted to 1.11 re-tested, it works the same.

Settings are: BOTH lower and Upper LEDS on, chord recognition mode = Expert. Style mode, style NOT playing, split at B4.

C3, E5, G5 = no chord recognised.

I also discovered that anytime the upper is needed to build the chord ALONG with the lower, there can not be more than 17 half steps away from the lower notes in order for it to work. Fingered 3 mode does the same. Lower does not care about the spread. BUT Upper always cares about this 17 note spread??? No chords are recognised if the notes are not in this 17 note spread.

I'm not sure if there is a good reason it works this way or not. It may very well be this way for a good reason???

I discovered it playing some orchestrial string /brass where I was using some lower notes as bass and upper for lead along with a style. I then noticed the chords were not changing and it sounded bad.

Lee
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chord scanning

Post by dadams »

Hi guys

I decided to move to this forum to participate in this topic. Couldn't get on at first, I'd lost my password or something.
As far as chord scanning with keyboard mode UPPER on and both LED's on for chord scanning, I tried what Lee is talking about with the 17 half steps, and agree. I'd like to add something else.
The way it seems to me is when you play that way if you want to go further apart on the keyboard, you have to revert to a single note in the bass and a complete chord in the treble, and even then it's iffy. If you play 2 or more notes in the bass it sounds bad. You can somewhat fix this if you transpose it up an octave or two. Maybe it is due to the piano parts being set up an octave low, so when you switch to full keyboard you are defaulting to an octave lower, which makes the bass sound discordant.
Pretty much stops me from playing full keyboard in a piano style and switching on the fly.

Don
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Rob Sherratt
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Post by Rob Sherratt »

Hi Lee,

OK, so the behaviour is the same as it was under OS1.11. Thanks for testing it. So it's not newly introduced by OS2.0, it's always behaved this way? I would like to spend more time investigating it myself but I have to await return of my keyboard.

The difficulty I'm having with this conversation is that I've been playing my Pa2x for over 9 months in exactly the chord recognition mode described here, and I have never noticed any problem. Maybe I play too many notes at the same time, or maybe I play the notes too close together to notice any problem - I don't know. I want to look again at what I do when I get my keyboard back.

Hi Don,

You say when you play 2 or more notes in the bass it "sounds bad". You need to be very much more specific if you think this is a bug. Like I said to Lee, I play with full keyboard style all the time and accompaniment and chord changes and the keyboard solo notes sound just fine.

Maybe in future I can help some more about this. Let me get my keyboard back first?

Best regards,
Rob
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Lee
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Post by Lee »

Rob,
Maybe it would have been good for Korg to just give you another unit, intead of making you wait.

Your important here, and I also thought you were doing a project for them??

Lee
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