An object of the present invention is to achieve a good parameter control device operability at low cost.
Comprising A respective plurality of operating elements, a plurality of ch strips disposed on the operation panel, each assigned to one control target, the parameter values ​​of the control object assigned to each ch strip, the ch in case of changing in response to the operation of the strip of operating element, the display in accordance with a predetermined sequence order, the parameter values ​​of the control objects assigned to a part range of the ch strips successive of the plurality of ch strips, the display together is, according to the first operation of the user, controlled display of the display, which are assigned from a certain view of some range of ch parameter values ​​of the control object assigned to the strip, to another part range ch strip It was to be changed in the display of the parameter value (S31~S33).
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