It was the opposite indeed.
Casio noted that Yamaha’s FM synthesis was too difficult to understand for regular musicians so they thought that their PD approach would succeed because the UI was similar to a traditional substractive synth.
How it could happen when Casio PD/iPD synthesis came few years after Yamaha FM?
Daniel Forro
> On Sep 13, 2018, at 2:27, charles copp charles.copp@... [CZsynth] <CZsynth@yahoogroups.com> wrote:
>
> I think Yamaha stole casios ideal is
> what I read elsewhere...and the fm in
> the dx has been proven not true fm
> synthesis ,,,oh boy the internet really
> messing with my mind .!! lol
>
> unclear what I remember very busy
> programming I modula a.t.m
>