Slur Rules and GPO

[pcartwright]

Well... I'm experiencing the issue again. However, the legato is working on the GPO strings, but it's not working on woodwinds or brass instruments. Is anyone else having this issue?

[pcartwright]

I just realized that this was the issue that started the post.

So then, has anyone had any luck adjusting/editing the rules files?

[fandango]

Well... I'm experiencing the issue again. However, the legato is working on the GPO strings, but it's not working on woodwinds or brass instruments. Is anyone else having this issue?

Yep, same issue here.

n-Violin Plr 1 = legato NO
Violin Plr 1 = legato YES
n-SAM French Horn Plr 1 = legato NO
SAM French Horn Plr 1 = legato NO

Seems only the non-notation preset GPO strings obey the slur settings.

[fandango]

Has anyone logged this as a bug yet?

[pcartwright]

I did a month or so ago... though I haven't received any update yet (clearly the issue is still present). Others may want to submit the bug so that the issue gets expedited.

Anyway, I have been tweaking the GPO rules file with some success to add the legato feature as well as change how some articulations are interpreted in GPO. I think GPO can handle a lot of other articulations (i.e. articulations that aren't necessarily defined in standard keyswitches) with proper adjustments to the length, porta, and other “hidden” CC variants included in GPO (especially in the stringed instruments).

If anyone would like to assist me in this endeavor, it would be much appreciated by me (and ultimately other GPO users).

[fandango]

Sorry to bump this after such a long time, but it seems to me that GPO is still not doing legato in Notion for Woodwinds, etc.

If I do a measure of melody and then a measure of the same melody with a 'slur', they both sound identical and 'detached'.

[pcartwright]

Try replacing the slur rules (in the prules file for GPO) with this:

<rule>
<!-- legato-->
<if condition="under-slur" />
<cc type="note-off-prefix" controller="64" value="127" />
<duration-change amount="1.02" />
</rule>
<rule>
<!-- not legato-->
<if not-condition="under-slur" />
<cc type="note-on-prefix" controller="64" value="0" />
<duration-change amount="1" />
</rule>

I use controller 64 because I switched my instrument defaults to "standard" instead of "notation" in the ARIA player. You'll need to use a different controller for instruments using the "notation" samples, but I don't remember which controller exactly.

You don't have to include the duration change lines; I adjusted the duration to added a little extra legato to the sound (alternatively, you could leave the legato duration to one and reduce the detache duration or leave both at one).

[fandango]

Hiya, thanks for that!

Do the changes have to be made for every slur in the file? (they only seem to refer to strings? there's no global slur reference in the original prules?)

Also, how did you switch to the standard instruments? I'd like to do the same.

(sorry for all the questions, I just wish this worked out-of-the-box! )

[pcartwright]

Hiya, thanks for that!

Do the changes have to be made for every slur in the file? (they only seem to refer to strings? there's no global slur reference in the original prules?)

Also, how did you switch to the standard instruments? I'd like to do the same.

(sorry for all the questions, I just wish this worked out-of-the-box! )

You should go through the custom rule documentation (found in the download section). I don’t remember how the original GPO rules are laid out (I’ve tweaked mine hundreds of times since getting Notion). There are lines of code you can use to customize how a slur is treated with each instrument with an instrument-id condition, but I would strongly urge you to look at the custom rules docs first.

As far as changing to standard instruments, you’ll find the instrument templates in a folder with the GPO rules (at least that’s the case in Windows, I’m not sure how it’s organized in the mac version). Open those flies and you should see a single staff with a loaded instrument. Open the Aria interface; change to standard notation and save the file (I would also strongly recommend making a backup of your instrument templates and your rules files). Don’t do “save as” in the instrument templates (save as doesn’t seem to work), just save over the previous file.

For rules files, I would copy the rules into a new text document (or text editor of your choice) to make adjustments. Keep both files while working on your custom rules (again, back up your default rules file). Once you’re done with your tweaking, copy your custom rules file to the GPO folder and test it out. You have to reload instruments for new rules and templates to take effect (it appears that Notion’s save state includes rules in which the instrument was loaded as well as the sample used).

In terms of working out of the box, I think GPO works pretty well with Notion3 from the get go. Part of the “issue” is that GPO is meant to have a lot of user control through CC, keyswitches, and playing techniques that’s unlike other sample libraries (in short, GPO was designed for live performance as much as it was designed for in the box composition). For example, I really can’t use (at least not efficiently) percussion instruments because a lot of different percussion instruments are included in one patch (which makes isolating them in notation form [each to its own staff] a bit difficult).