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Montage M - SOLVED - Why does a portamento change on one part affect both parts for the CFX + FM EP performance

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Posts: 773
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Topic starter

The Arp/MS/Porta display mode (p 114 in the ops doc) shows that on the performance home page you can now make portamento settings for both the performance and for each part.

But for the displayed perf (CFX + FM EP) if you press 'Prt On' for part 1 in turns it on for part 2 also and vice versa.
Even if you select part 1 the Prt On switch sets the state of both parts.

Other parts I checked don't do that - the setting (or change of setting) for each part is separate. I haven't been able to determine
what it is about that performance that makes it work differently than other performances I checked.

If I add CFX Stage as a 3rd part it's portamento switch is independent of the other two for part 1 and 2 but part 1 and 2 portamento changes still operate together.

Does anyone have any clues about why these two parts might be linked together regarding portamento? I'm guessing this
may NOT be a 'working as designed' condition but only Yamaha knows for sure.

Posted : 15/10/2023 12:28 am
Posts: 773
Prominent Member
Topic starter

The reason is that both parts have been assigned to the SAME Portamento 'group'. See page 203 of the ops doc

I found other performances where portamento groups were assigned and they all act in the described manner. I will post another thread with the details.

Posted : 18/10/2023 10:24 pm

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