The possibility of interfacing the hurdy-gurdy with the limitless power of the modern synthesiser has finally been realised with this system.
The external difference is only the bank of 8 switches on the keybox side. These switch on midi channels 1 to 8 . Channels 1 and 2 are linked to the keyboard, allowing 2 separate voices to be added to the chanterelles.
The signals from the keys are triggered by magnets embedded in the key shafts which are sensed by Hall effect switches There is no mechanical switching involved.
Channels 3 to 7 are available for up to 5 drone voices. These can be tuned within the synthesiser to whatever pitch is required.
Channel 8 takes its trigger signal from the buzz of the trompette, allowing the playing of any voice ( typically drum ) to play only when a coup is applied.
The overall volume control is set with a sharp attack and decay envelope which is triggered by a ring of magnets embedded in the wheel. The Hall effect switch senses movement of the wheel and stops or starts the midi sound accordingly.
The outputs of this instrument comprise a custom multi pin socket which takes the signal to a small mains transformer/splitter box. A standard midi lead is then used to connect any GM synthesiser. I like using the Korg 05r/w module and have a few available which I have programmed with a good selection of sounds.
This system has been built into my electro-acoustic model and the black plate has an XLR socket to phantom power the onboard mixer. The other input is a standard jack socket which uses the onboard battery for power.
I would like to thank Roy Whiteley for his skill and perseverance in programming the midi codes for this instrument. Roy's usual area of expertise is the midi interfacing of concertina and melodeon. Examples of his craft can be found at http://www.accordionmagic.com/
The instrument will be available to try at my stand at Saint Chartier this year
I have written a little Scottish called Après Midi which can be accessed <<< here>>> played on the above instrument using a Korg 05r/w midi expander. The first few bars are straight gurdy then clarinet, accordion, percussion and drones are added progressively. For the full tune and a few others, have a look at http://www.myspace.com/neilbrook
The midi gurdy possibilities are further explored in a CD I have recorded. There are 10 new compositions and arrangements of 4 "standards "
It is available from me at a modest £ 5.00 plus £1.50 UK p&p
At : 1 Shire Bank Cres.Fulwood, Preston. Lancs. PR2 9QE
I have uploaded a couple of the tunes to http://www.myspace.com/neilbrook
It is played solo, real time without any sequencing or computer trickery except fade in and out .Apologies for the missing accent in après on the title bar, my website host doesn't recognise French it seems.