Renders a calibration note per program through each engine and reports what a listener would
call broken before anyone listens: an engine that was not used (the fallback told through
onMidiSynthFallback), a note that comes out silent, samples pinned at full scale, a constant
offset, and a strongest partial that is no harmonic of the note (a wrong pitch). The numbers are
screening, not a verdict: a flagged note is one to listen to, an unflagged one is not proof.
Renders a calibration note per program through each engine and reports what a listener would call broken before anyone listens: an engine that was not used (the fallback told through
onMidiSynthFallback), a note that comes out silent, samples pinned at full scale, a constant offset, and a strongest partial that is no harmonic of the note (a wrong pitch). The numbers are screening, not a verdict: a flagged note is one to listen to, an unflagged one is not proof.