Hi Ralph,
You didn't really read my post didn't you? You are slghtly off-topic, it reads
like the catalogus of a keyboard shop. Look at the name of this forum. Linux: that is
about software. Developers: that
are people interested in creating something new, not in purchaging all kinds of gear.
Still: thanks for the information.
W.
On 08/28/2014 11:53 AM, Ralf Mardorf wrote:
  Programming a sound using what kind of synthesis ever
needs knowledge
 and many parameters. But there's another way to easily make new sounds
 based on existing sounds. E.g the Yamaha TG33's joystick, the vector
 control records a mixing sequence, where the volume and/or the tuning of
 4 sound can be mixed. Since you mentioned touch screens, Alchemy for the
 iPad allows to morph sounds by touching the screen similar to the
 joystick used by the TG33, but it also can be used to control filters,
 effects and arpeggiator. There already are several old school synth and
 AFAIK new workstations, especially new proprietary virtual synth that
 provide what you describes. Btw. 2 of the 4 TG33 sounds are FM sounds,
 not that advanced as provided by the DX7, the other two are AWM (sound
 samples). Regarding the complexity of DX7 sound programming, the biggest
 issue is that it has got no knobs. There are books about DX7
 programming, such as Yasuhiko Fukuda's, but IMO it's easier to learn by
 trail and error. JFTR e.g. the Roland Juno-106 provides just a few
 controllers, but you easily can get a lot of sounds, without much
 knowledge 
http://www.vintagesynth.com/roland/juno106.php , in theory
 this could be emulated by virtual synth, in practise the hardware allows
 to use specialized microchips that produce analog sound, that can't be
 emulated that easily, not to mention that at the end of the computers
 sound chain there always is a sound card, so if you emulate several
 synth with the same computer, it's not the same as having several real
 instruments, a B3, Minimoog etc..