Chords and Triads Flashcards
(99 cards)
What number of integer is used when referring to intervals?
Arabic numbers i.e. 1 to 8
What type of integer is used when referring to chords?
Roman numbers, upper case for Major Chords (I, II etc) and lower case for minor chords (i, ii etc)
What sign is used to mean a diminished chord?
A degree sign - superscript o.
What is a semitone?
Any interval between two adjacent notes in a chromatic scale.
What is a whole tone?
Any interval spanning two semi-tones.
What are the two names and the abbreviation for intervals with 0 semitones?
Perfect Unison - P1
Diminished second - d2
What are the two names and the abbreviations for intervals with 1 semitone?
Minor second - m2
Augmented unison, A1
What are the two names and the abbreviations for intervals with 2 semitones?
Major second - M2
Diminished third - d3
What are the two names and the abbreviations for intervals with 3 semitones?
Minor third - m3
Augmented second - A2
What are the two names and the abbreviations for intervals with 4 semitones?
Major third - M3
Diminished fourth - d4
What are the two names and the abbreviations for intervals with 5 semitones?
Perfect fourth - P4
Augmented third - A3
What are the two names and the abbreviations for intervals with 6 semitones?
Diminished fifth - d5
Augmented fourth - A4
What are the two names and the abbreviations for intervals with 7 semitones?
Perfect fifth - P5
Diminished sixth - d6
What are the two names and the abbreviations for intervals with 8 semitones?
Minor sixth - m6
Augmented fifth - A5
What are the two names and the abbreviations for intervals with 9 semitones?
Major sixth - M6
Diminished seventh - d7
What are the two names and the abbreviations for intervals with 10 semitones?
Minor seventh - m7
Augmented sixth - A6
What are the two names and the abbreviations for intervals with 11 semitones?
Major seventh - M7
Diminished octave - d8
What are the two names and the abbreviations for intervals with 12 semitones?
Perfect octave - P8
Augmented seventh - A7
How are intervals named in Western Music?
According to its number (diatonic number) and its quality.
What is the diatonic number of an interval?
The number of staff positions (or diatonic scale degrees - note names) it encompasses - both lines and spaces are counted, including the position (or note name) of both notes forming the interval.
What is never taken into consideration when determining the interval’s diatonic number?
Accidentals
Because intervals numbers do not represent exactly interval widths, what happens to the numbering when you join two intervals?
Joining two intervals always yields an interval number one less than their sum. For example, the intervals of C-E and E-G are thirds, but joined together they form a fifth (C-G) not a sixth.
Because intervals numbers do not represent exactly interval widths, what happens to the numbering when you join three intervals of a third?
A stack of three thirds (C-E, E-G and G-B) is a seventh, not a ninth.
What are the terms used to qualify the name of an interval (i.e. the words used to indicate the quality of the interval)?
Perfect (P) Major (M) Minor (m) Augmented (A) Diminished (d)