Pitch

{
	"1PCH",	//	ID
	0,			//  HEAD
	{			//  MATRIX
		"Pitch",	//	Row 
		{"Frequency", "Hz", "%10.4f" },	// Column 1
		{"Confidence","%", "%6.1f"	},		// Column 2
	}
}

Note that this format accommodates virtual pitches and estimators that vote amongst pitch candidates. Each row in the data vector is an estimated virtual pitch.