Freshman Theory Midterm Review

Dorian (protus)

Mode with minor 3rd & major 6th

Okay to raise 7 in cadence

Aeolian

Mode with minor 3rd & 6th

Okay to raise 7 in cadence

Phrygian (deuterus)

Mode with minor 2nd & 3rd

Cannot raise 7 in cadence

Lydian (tritus)

Mode with major 3rd & augmented 4th

Cannot raise 7 in cadence

Mixolydian (tetrarous)

Mode with major 3 & minor 7

Okay to raise 7 in cadence

Natural minor scale

Major scale with lowered 3, 6, & 7

Harmonic minor scale

Natural minor scale with raised 7

Melodic minor scale

Ascending: natural minor with raised 6 & 7

Descending: natural minor

Perfect intervals

1, 4, 5, & 8

Imperfect intervals

2, 3, 6, & 7

Species 1 counterpoint

1:1, consonant intervals only

Species 2 counterpoint

2:1, dissonant intervals okay as passing tone on weak beats

Species 3 counterpoint

4:1, dissonant intervals okay as passing or neighboring tones on weak beats

Authentic (modes)

Notes stay mostly above final note

Plagal (modes)

Notes stay mostly below final note