Hi @rsaintjohn and others   Look here:   PX-5S: Sending Program Changes to External Gear | PRIVIA PRO BLOG (wordpress.com)   I used the approach described on this blog, and now my PX-5S, via an altered stage setting, controls tone selection and triggers notes on the CT-S1. In addition to this, I can manipulation factors such as: filter cut-off filter resonance, attack time, chorus, delay reverb (and possible se
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