Dear people,
Where can I find the instrument synthesizer on Halion sonic se.
Of Halion 6
groet Albert

I don’t know, but you maybe better ask this question in the dedicated HALion forum: HALion - Steinberg Forums

Halion is a sampler not a synth. As far as I know no synth comes with it.

But there is at least one free one: Synth W, a wavetable synth:

[I haven’t tried it.]