One writable param of a preamp record — the fields a /channel/{kind}/{index}/headAmp PATCH
may name, and the keys the known-set is kept per. Declared here, beside HeadAmp
itself, because both sides of the wire range over it: the resource that holds the record
(@freemixer/audio-engine) and the capability derivation that narrows a channel's controls by
it (channel-capability.ts).
One writable param of a preamp record — the fields a
/channel/{kind}/{index}/headAmpPATCH may name, and the keys the known-set is kept per. Declared here, beside HeadAmp itself, because both sides of the wire range over it: the resource that holds the record (@freemixer/audio-engine) and the capability derivation that narrows a channel's controls by it (channel-capability.ts).