I thought I would try to explain this better.
The music passage I am playing needs 3 sounds.
A marimba, a pad, and a lead trumpet sound.
The marimba is playing 2 notes. I am using the arp plug in to fake a rapid mallet strike between the two notes. A Marimba roll.
The Pad is playing the same 2 notes with no arp plug in.
The Lead Trumpet sounds needs to be able to play ONLY the top note of the chord being played.
Right now if I add the trumpet sound on a layer it will obviously play everything on that key range (set the same as the pad and the marimba)
What I would like is a plug in that will scan what I am playing and only play the top note. Then I can have the trumpet sound playing just the lead melody line. I am playing something with my left hand already so I can't use that hand for the trumpet sound.
I hope this makes mores sense. Thank you for looking and if anyone has any ideas I would love to hear it. I have scoured the web and haven't been able to find the answer.
Mac Mini i7 Quad core, 16 gigs RAM, Yosemite OS, MainStage 3 (latest version), Reason 8 (latest version), Nektar P6, KX8, Audiobox1818, Alien Ears Monitors.