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Intervals & Notes

D
P1
294 Hz
1:1.00
E
M2
330 Hz
1:1.12
F#
M3
370 Hz
1:1.26
G
P4
392 Hz
1:1.33
A
P5
440 Hz
1:1.50
B
M6
494 Hz
1:1.68
C#
M7
554 Hz
1:1.89

Roman Numerals

Numeral	I^Δ	ii^-	iii^-	IV^Δ	V^⁷	vi^-	vii^ø
Degree	1	2	3	4	5	6	7
Name	D Maj 7	E Min 7	F# Min 7	G Maj 7	A Dom 7	B Min 7	C# Half-Dim 7

Diatonic Modes

Fretboard

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1	2	3	4	5	6	7	8	9	10	11	12
		•		•		•		•			• •

Child Chords

Name	Notes
D Major Triad	D				F#			A
D Major 7th	D				F#			A				C#
D Major 6th	D				F#			A		B
D Suspended 2nd	D		E					A
D Suspended 4th	D					G		A
D Major 9	D		E		F#			A				C#
D Major 11	D				F#	G		A				C#
D Major 13	D				F#			A		B		C#

Child Scales

Name	Notes
D Major Pentatonic	D		E		F#			A		B
D Ritusen	D		E			G		A		B

Parent Scales

Name	Notes
D Dominant Bebob	D		E		F#	G		A		B	C	C#
D Major Bebob	D		E		F#	G		A	Bb	B		C#