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If I have four timbres on different midi channels and the arp is assigned to two of them, and I select one timbre and hit a key, the two timbres that the arpeggiator is assigned to will sound.

I've never noticed this before so maybe its normal, but just to make sure can someone confirm that this is normal behavior for the radias or do I have a bug?

If the arp or sequencer is playing, all timbres attached to that arp/seq will also play.

For example using the RADIAS-KBD to select only a specific timbre, or when timbres are receiving on different MIDI channels, or on the global MIDI channel.

Its just like an effect - you can't split the sound back into 'drums' and 'bass' once they've both gone through the same FX processor.
In this case the arp or seq is a 'MIDI Effect'. It responds to certain MIDI channels, but it doesn't discriminate between inputs or keep track of which notes come from where. All the timbres are all in a 'run' state, so technically you could be triggering the other timbre with different notes - would you expect them to play different arpeggios from the same arpeggiator? it would imply two arpeggiators...

X-Trade wrote: would you expect them to play different arpeggios from the same arpeggiator? it would imply two arpeggiators...

Thats a very good point. The way I was expecting it to behave though is for only the timbre that I selected to play as selecting a certain channel will only make that timbre sound from midi note-on if the arp is not engaged. Of course I can just mute one of the arp-assigned timbres to get the same effect but i just assumed that arp or no arp, it would behave the same way.

I looked at the routing for the arp assignment and it looks like its engaged before the synth engines so yes, hitting a key would make the arp run and trigger any assigned timbre whether they're selected from the current midi channel or not.

Thinking of it as a "Midi effect" helps a bunch, thanks.