Objective 8.5

Suggested Learning Resources

1) YFIO

2) Video Lesson:

3) Online Reading: MusicTheory.net Lesson http://www.musictheory.net/lessons/49

4) Interactive Lesson:

Music Theory QuickThink:

- Identify the key

- The root of the chord is associated with the scale degree number of the key. (Ex. in the key of Bb Major , F is the 5th scale degree)

- Convert the scale degree number to a roman numeral. If the triad of the seventh chord is major , write the roman number in upper case: If the triad is minor or diminished, write the roman numeral in lower case. If the seventh chord is fully diminished add a small circle sign (°) If the seventh chord is half diminished add the small circle sign with a slash through it.

- Example: in the key of G minor, an Eb Major triad would be marked as VI

- Expected Roman numerals for chords in a minor key

i7, ii ø7, III7, iv7, V7, VI7, vii ° 7

- NOTE: In order to achieve V and vii ° , the 7th scale degree of the minor key must be raised by one half step (an accidental will appear in these chords). If the 7th scale degree is not raised, the roman numeral quality would be v and VII. It is more common to see V and vii ° in music, but either is possible.

Minor Keys

Scale Degree Root	1	2	3	4	5	6	7
Triad Quality	m	d	M	m	M	M	d
7th Quality	m	m	M	m	m	M	d
Full Name	minor minor 7th	diminished minor 7th	Major Major 7th	minor minor 7th	Major minor 7th	Major Major 7th	diminished diminished 7th
Common Name	minor 7th	half diminished 7th	Major 7th	minor 7th	Dominant 7th	Major 7th	fully diminished 7th
Abbreviation	mm7	ø7	MM7	mm7	Mm7	MM7	°7
Roman Numeral	i7	iiø7	III7	iv7	V7	VI7	vii°7

Objective 8.5: Examples in Music: YouTube

http://youtu.be/Yo93uqvV3kA?t=6m55s

Objective 8.5: Label seventh chords correctly by use of Roman Numerals when associated with a Minor Key