If you’re using a DAW to play to the NTA, it’s a piece of cake to edit and quantize the guide track. The problem with Ted’s system is that the range of chords it recognizes is far less than can be used. If you give it chords that are inversions, for instance EGAC, how does the chord recognition tell whether it’s Am7/E, or C6/E? You would have to be skilled using a pedal to switch on and off the Bass Inv. switch in real time to adjust for inversions and slash chords.

Edit your guide track to the NTA and you can play permanently in Bass Inv. ON the whole time and get a far larger choice of chords, inversions and slash chords.

The BK9 isn’t able to edit its Chord Track, which means you have to input the played guide track PERFECTLY. Not only perfectly as to notes, but also perfectly as to timing to be just a few ticks early. It’s horribly difficult to do this even slowed down unless the chord track is ridiculously simple! It’s also very bad for your playing to start rushing in general (slightly late or dead on time playing sounds great, but pushing the beat rarely sounds professional) simply to get clean guide tracks to the arranger engine.

I’m not sure if the Go keyboards have an automatic quantize for the Chord Track, but it’s missing from the BK9. In fact there’s no way to edit the CS at all. IMO, Roland should have used an SMF as the format for the CS, but they went with a proprietary format, so you can’t copy it to a DAW (or the internal 16-track sequencer) and edit or quantize it. With Korg’s you can do this…

So you have to use a DAW track to the NTA channel.

But, bottom line, although in an edit window of a DAW, you may see a bunch of code to deal with the arranger changing slightly late input to the NTA to the correct new note, unless you can HEAR it, let it go. You can edit the track to remove all extremely short notes (they will be the notes from the previous chord) and quantize the late notes that are the new notes to the closest 16th and that fixes it as well.

It’s a REALLY bad playing habit to get into, rushing your playing a tiny bit to get cleaner chord recognition… it’s one of those things that’s VERY hard to turn on or off once you start doing it. And even harder to learn to push your LH and drag your RH!

If slowing the track WAY down is still leaving you with the odd late chord input, I think it’s better to use a DAW track to drive the NTA than learn to push the beat.

Last thought, perhaps it’s worth contacting anyone that is making a software Roland style player, and see if they might be willing to code a utility that converts between Roland’s Chord Sequencer file format (it still is basically an SMF but with a non standard suffix and some other little code things) and an SMF. That way you could create the CS on the BK9, export to the DAW, edit it, and then convert back to the Roland format.