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Hah :) Great minds think alike. Gareth > > For years I've had the wish to add sympathetic strings to the guitar. The way > I'd imagined this being done would be to use two guitars. The first would have > some sort of pickup for the six (or however many you have !) strings. >This > signal would then be fed to another guitar - I think an old acoustic >would work > well here - maybe a 12-string. This is where my idea needs work, but >maybe the > Sustainiac string driver could be adapted. The sound from the first >guitar is > applied to the strings of the second one in a controlled way in order to produce > sympathetic vibrations - I'd originally thought of doing this by fitting the > guitar with an internal speaker of some kind, but a transducer such as >the > sustainiac or a conventional pickup (fed from a preamp) may be persuaded to work > in reverse. The sound of the sympathetic strings could then be mixed with the > sound from the first guitar using a conventional pickup on the second guitar. > The advantage of this setup is that you have a greater range of tuning >for the > longer sympathetic strings, and you can also adjust their volume with respect to > the main signal. I have a feeling that the original Coral Sitar Guitar relied on > the strings vibrating using the resonance (?) of the solid body of the guitar. > This would probably work if you were standing next to a 200w stack (which would > set the guitar and your internal organs resonating), but I doubt if they create > any sort of discernible sound in most other situations - I've never >played one, > but I imagine that this is the case. > As with a lot of my ideas, this has languished without being put into practice, > mainly because of the need for a suitable string driver in the second guitar. If > anybody has any suggestions as to how this could be achieved, I would be very > interested ! > > John Mcleod > > > James Pokorny wrote: > > > Gareth wrote: > > >there was a thing calling itself an electric sitar with 12 sympathetic > > >strings under a Perspex cover and a sitar type bridge. > > > > >Tuning of the extra strings was done with a sort of autoharp/dulcimer key. > > > > I've seen this type of guitar and have to chime in (pun fully intended) that > > these type of strings are not truly sympathetic strings. That is, they > > don't really resonate when the main strings are plucked. I think the > > intention of that design is to imitate the multiple strings of the sitar. > > However, when they're located too far from the main playing strings >they > > won't begin to vibrate spontaneously from the sound of the main >strings. My > > feeling is that they're included on this type of instrument to simulate the > > tinkling, cascading zither-like sound called "jhankar" that we >associate > > with the rapid brushing of the sitar's sympathetic strings. As an aside, > > this sound used to be exclusively a "tuning check" of these strings and was > > never incorporated into the actual music itself until Pandit Ravi Shankar > > began using it as a sort of punctuation device between phrases or sections > > of the raga's development. > > > > >Another type of guitar ran the sympathetic strings at an angle to the main > > >guitar strings and under them, where they intersected. It had a protruding > > >pseudo-neck coming out at an angle along which the sympathetic strings > > >ran. > > > > This instrument sounds as though the additional strings really would work > > "sympathetically" due to their resting beneath the main strings. I'm not > > really sure how effective this would all be on an electric instrument, > > though, since the pickup would essentially replace the resonator. I have > > half a dozen traditional "ethnic" instruments that use sympathetic strings > > and of course, they're all purely acoustic. Most have very thin wooden > > faces that emphasize a bright sound and rich harmonics, and some of >them > > have skin-covered resonators, which also really liven and expand the sound > > (think banjo vs guitar). My Indian instruments (sitar, surbahar, dilruba) > > also have specific "twanging" bridges for the sympathetic strings that > > increase their resonance. I've found that on some of these instruments it's > > taken a long time (up to 5 years) for the instruments to 'warm up' enough > > that the sympathetic strings really begin to "speak." I feel that this is > > due to the density of the wood in the neck along which they run, underneath > > the main strings. So I wonder how well sympathetic strings would vibrate in > > the absence of a resonator? > > > > Anyway, my 2 "cents" [monetary, not tuning intervals :-) ] > > > > James >