dieter doepfer say:
My suggestion
would be:

about 2-3 octaves (i.e. about 25-37 keys)
first LED for each key (to show the state of the key
on/off)
gate output socket for each key (outputs the LED state
as a gate
signal)
second LED for sequencer step display
control (rotary potentiometer) for each key
CV output for each key (position of control knob
defines voltage, a
kind of
25-fold CV source)

general features/outputs:
CV out 1 (quantized output that corresponds to the key
like a standard
keyboard,
1/12V resolution per tone)
CV out 2 (this outputs the control voltage of the
active key that is
adjustes
with the potentiometer controls)
CV out 3 (after touch voltage, derived from the
pressure sensor below
the
keyboard)
Gate out
MIDI out (by the way the MIDI out would not increase
the price very
much so that
we will add this in any case)

In "keyboard mode" the outputs are used as described
above. CV1 is the
normal CV
output. CV2 can be used to create arbitrary scales of
completely random
CV
voltages assigned to the keys.

In "analog sequencer mode" CV2 and Gate work like the
output of a
analog
sequencer. The keys can be used in this mode for
different settings:
e.g. to
turn on/off single steps - or - to define the
first/last step of the
sequence -
or- to define which steps of the sequence are played
(only those steps
are
active where the keys are touched, the remaining steps
may be skipped
or played
with a pause).

In "digital sequencer mode" a sequence can be recorded
into the memory
by
playing the keys. In play mode both CV1 and CV2 can be
used (remember:
CV1 is
the "normal", CV2 the "free scale").

For the sequencer sync to (hardware) clock or MIDI
clock is possible.

Unfortunately most of these features would be possible
only monophonic.
This is
why I would tend to a monophonic keyboard. But in the
normal "keyboard
mode" 4
voice polyphonic should be no problem.



=====
synthfreak(parallel worlds)
athens-greece
1 group owner-moderator

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