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GR-20 Hexaphonic 19-ET Guitar Improvisation



 Genre: Solo Instrument

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This study entailed learning how to simultaneously play six instances of z3ta+ in 19-ET tuning with my Fender Mustang using a Roland GR-20 as the guitar to midi interface.

I improvised in an ambient-ish style and explored the fret board combinations both in both harmonic and timbrel relationships with some melodic considerations.

The GR-20 has a mode in which each string of the guitar is assigned a midi channel, channels 1 through 6. Thus hexaphonic output is possible. In this case each string’s output is sent out the GR-20 through a midi to usb adaptor into my laptop and then into Sonar 8.5. In Sonar I assign each string an instance of z3ta+ – a software synthesizer that comes with Sonar that is microtonal capable. Each of the six instances of z3ta+ have a unique preset voice assigned and has a 19-ET tuning file loaded. In the case of the high E string, channel 1, which sounded too high for me, is transposed at Sonar by -19 midi notes which yields the octave below the one I’m playing when using 19-ET.

One of the points of doing this is to make each string spatially different – in stereo-space the strings are arranged 5 3 1 2 4 6 in increments of 20%, i.e., 20, 40, 60 percent off center each side. No hard panning allows some of the stereophonic aspects of the zeta+ voices to be heard.

The video is for Feter to demonstrate the performance (such as it is) with the same set of synthesizers.

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Uploaded: Dec 09, 2009 - 11:35:02 PM
Last Updated: Dec 10, 2009 - 03:56:05 PM Last Played: Mar 01, 2018 - 01:14:00 AM
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GR-20, Fender Mustang
Sonar 8.5
Feter said 3025 days ago (December 9th, 2009)
Intresting experiment ..it will be more
interesting to see how are creating this
thnx alot for sharin !!!!
Check out my latest song called Roll with it
Vaisvil said 3025 days ago (December 9th, 2009)
Hi Feter
I will arrange to have a video taken of another improvisation and post it to youtube. The real info is I'm finger picking classical style. And slowly at that - the most of the synth patches have slow attacks.
Check out my latest song called Hit Chart Blues
Feter said 3025 days ago (December 10th, 2009)
The Video !
This is incredible I would never imagine this can
happened ...very creative really ...yes I did
something like that with keys but guitar ?? this
is really blowing my mind ...I see you are not
doing any bending for to keep the notes in tune..
all I can say is thank you so very much for the
time and efforts for to explain to me ..its so
possible to create such ambient sound on the
guitar ...kudos !
Check out my latest song called Roll with it
magnatone said 3024 days ago (December 11th, 2009)
you are quite a musical magician - the breadth and depth of the things you experiment with is stunning. this is engaging on many levels, and i'm so glad you found MJ!
Check out my latest song called Hallelujah (Leonard Cohen) and Variations
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Name: vaisvil
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