Combination of Sylpho with Ketron sound modules is quite easy to use and has 4 banks with 128 voices each. You can control it directly from Sylpho or via computer with MIDI-OX, a simple program that can control Ketron and other MIDI synth, quickly select your favorite voices and assigns parameters like chorus or reverb to different MIDI channels. After trying many large DAW programs I gave up - too complicated and not doing what I need. MIDI-OX solves the problem. You need to use instrument definition for SD1000, link is on my page.
http://www.is.umk.pl/~duch/prywatne/Fjukawka/index.htm

See Sylphyo on Ketron SD 1000 for samples: Mission Latin Flute | Mission Pan Flute | Mission Oboe. I will add more examples but I have plenty of links to Akai EWI on Ketron that will give you an idea how it sounds. I have Yamaha VL70m with Patchmen's chip, but Ketron sounds much better. A pity their manual ans software support is so poor, but with Sylphyo new firmware and MIDI-OX it works perfectly.

It would be useful to link base key to particular voices; now I need to change it for some instruments, for example going from saxes to flutes.

@wlodzislaw With new firmware setting MIDI program change to send bank info works great with Ketron! Initially I have reversed MLB/LSB, so nothing happens but now I can access all banks and voices.
Thank you, this is very useful and allows the use of Sylphyo without computer.

Let me second that suggestion; quick change of selected voices would be very useful, especially during live gig.
Wlodek

@wlodzislaw I have noticed that although the beta firmware does not switch Ketron SD1000 control voices when changing directly from Sylpho (ex. jumping from 1 to 72) if I then change the voice by one step (ex. 72 to 73) it works! One step at a time.

@join Many thanks, it works fine. I have tested that myself with Yamaha but not with Ketron.
I guess it would be great to have a page with recommendation for different synths.
W

I have it switched off, but now with restricted air flow it has not happened for couple hours, so perhaps this was the problem. Plugging the bottom hole with some tissue made such a big difference. Perhaps wind instrument players who are used to blow hard like stronger air flow but EWI players are not use to it. With Akai EWI our problem was just the opposite, lack of air flow.

Works like charm! Many thanks.

@join Many thanks, will investigate your advice.

@wlodzislaw No progress with MIDI for Ketron? As I have mentioned running it through the computer software programs are changed without problems.
One problem that I have is that with Yamaha blowing soft and then harder increases loudness, with Ketron if initial blow is too soft blowing harder does not increase the loudness. I am playing with different settings, logarithmic curve still seems to be the best and changing other parameters also did not solve the problem. Decreasing sound level by blowing softer works, so it is the initial attack that needs to be sufficiently strong.