I should have a build of GrandOrgue with installer for Puppy Linux version 4.2.1 (not the latest release - GrandOrgue is broken at the moment in Puppy 4.3.1). Download the CD Image of Puppy 4.2.1 from ftp://ibiblio.org/pub/linux/distributio ... monkey.iso
and burn it CD, then boot from the CD and follow the configuration prompts (mouse, keyboards, screen resolution). This loads Puppy in your RAM and doesn't touch whatever other software is installed on the computer. This will allow you to test Puppy and see how easy it is to use (remember, it is not Windows... so some basic things are quite different. For example: SINGLE CLICK on an icon will load the program!). When you shutdown Puppy Linux it will ask if you want to save a file. If you want to keep your settings for a later boot from the CD you can save a Puppy file to your harddrive (this will just be one file that contains a compressed file system).
I would recommend the use of a USB Memory stick for testing purposes with Puppy Linux. You will be able to install Puppy Linux onto the USB Memory stick and then boot from the memory stick, and run everything from there. If you want to try this, let me know and I'll send you the steps for getting it all woring.
In regard to Polyphony, on my AMD dualcore 2.8Mhz with 4 Gig Ram I'm able to run one instance of GrandOrgue with full 4096 notes. What I have also done is to run more than one instance (I have compiled 6 different builds of GrandOrgue) and run one with the Great, one with the Swell, and one with the Pedal, and this then allows me to route the audio of each division to different speakers. Controlling the three instances of GrandOrgue with one screen from jOrgan makes this very easy to manage.
When you say a 'Middle Sized' Organ, how many stops are you thinking? Two Manuals and Pedal or Three? Romantic, Baroque, or a large enough variety of stops to have both? Do you have any sample sets already chosen? We can also combine Ranks from different sample sets, so don't be limited by what sample sets are available...
The lack of bass response (due to phase cancellation from a lack of enclosure, and the difficult physical challenge of reproducing low frequencies with a vibrating taut film with little excursion amplitude) make the electrostatic speakers OK for the upper frequencies, but they have to be balanced carefully against the Midrange/Sub woofer so that they blend the sound. Are you thinking of using a 3-way splitter or of using software to manage the cross-over points?
Hope some of this made sense