...Gw XVII. Inversions...	Welcome to Guitarweek! Hey Kids, Get your parents' wallet!... ----------------
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    Microtones are the tones between the tones, The best way to find them is with a slide. To use a slide you must move it directly over the fret to get the 'fretted' tones, The microtones are exactly in the middle of the frets - With microtones, you turn the 12 tone scale into a 24 tone scale - The naming and validity of the microtones are probably not really clear, If you are using a chromatic tune then you can set A to 428 and you will be tuned a microtune down from standard tuning...

    Here we done the reverse of the original 'sound color' chart which was to chart out the color and tones based on the light - This one is based on the tone so we had to make a reverse converter to convert a tones frequency into terrahertz... We used a chromatic tuner set to 'A - 440' to help create this chart - Oddly enough, the purest colors (yellow, red, blue, green) seem to fall on the microtone scale...

Color	Wavelength	Color Frequency	Tone Frequency	Actual Tone	Note Played
				*microtones	* smallest string *
	400nm	749 Thz	698 hz	F	13th fret
	411nm	729 Thz	679 hz	*mt
	423nm	709 Thz	660 hz	E	12th fret
	449nm	688 Thz	640.5 hz	*mt
	449nm	668 Thz	622 hz	Eb / D#	11th fret
	462nm	649 Thz	604.5 hz	*mt
	476nm	630 Thz	587 hz	D	10th fret
	489nm	613 Thz	570.75 hz	*mt
	504nm	595 Thz	554 hz	Db / C#	9th fret
	518nm	579 Thz	539 hz	*mt
	532nm	563 Thz	524 hz	C	8th fret
	548nm	547 Thz	509	*mt
	566nm	530 Thz	493.66 hz	B	7th fret
	582nm	515 Thz	480 hz	*mt
	600nm	500 Thz	465.5 hz	Bb / A#	6th fret
	617nm	486 Thz	452.75 hz	*mt
	635nm	472 Thz	440 hz	A	5th fret
	652nm	460 Thz	428 hz	*mt
	672nm	446 Thz	415 hz	Ab / G#	4th fret
	692nm	433 Thz	403.5	*mt
	712nm	421 Thz	392 hz	G	3rd fret
	733nm	409 Thz	381 hz	*mt
	755nm	397 Thz	370 hz	Gb / F#	2nd fret
	775nm	387 Thz	360 hz	*mt

    The (* mt) are microtones, they make your tuners go crazy because its right in the middle of the standard tones.. The 'vibrations per minute' chart is based on the microtones, A guitar tuned down to 'A-428' is not the same as tuning down a half-step - 'A-428' is the tone between 'A' and 'Ab'... Here is a "Micro Tuning" chart that shows the two tunings side by side...