Modal Counterpoint

In three part first species _________.

Only verticle consonances are allowed.

A fourth may occupy between the upper two voices as long as ________.

the lowest voice has a third or fifth below the middle voice.

The augmented fourth and diminished fifth may be used as consonances between two upper voices under what circumstances?

Only as part of a diminished 6/3 chord. The diminished 6/3 chord may move by step to a 5/3 chord,

When using a diminished 6/3 chord between two upper voices, the chord may move by step to a _______.

The diminished 6/3 may move by step to a 5/3 chord. Either the upper voice moving down a step or the lowest voice moving up a step.

When using a diminished 6/3 chord between two upper voices, two members of the ______ move out by a step while the third voice moves to a legal consonance.

two members of the augmented fourth may move out by a step while the third voice moves to a legal consonance.

When using a diminished 6/3 chord between two upper voices, two members of the _________ move in by step while the third voice moves to a legal consonance

two members of the diminished fifth move in by step while the third voice moves to a legal consonance

When using a diminished 6/3 chord between two upper voices, the diminished 6/3 chord may occure in a __________ in which case the diminished 6/3 may be treated as a consonance.

the diminished 6/3 chord may occure in a chain of 6/3 chords in which case the diminished 6/3 may be treated as a consonance.

How many out of three voices must begin and end on perfect consonances?

At least two of three voices must begin and end on perfect consonances. The third voice may make a third above the lowest note.

In fourth species with three voices, the 9-8, 2-1, and 4-5 suspensions may be used under what circumstances?

As long as there is some kind of imperfect consonance at the point of resolution.

In three voiced counterpoint, can you have a 9-8 suspension with a minor ninth?

No, you must avoid the minor ninth and minor second when using the 9-8 or 2-1 suspension.

Describe the paralell sixth model in three voices

The soprano and tenor move in paralell sixths with eachother while the bass alternates between the third and fifth below (sometimes on the same beat to avoid voice leading mistakes).

Describe the paralell tenth model in three voices

The outer voices run in paralell 10ths together. The tenor voice may never create paralell sixths or thirds between the tenor and bass. The tenor voice may also use the 7-6 suspension, never a 9-8 suspension.

In three voice final cadences, can the lowest voice be approached by a 7th in the scale?

No, the goal note of the lowest voice may only be approached by a 5 or a 2.

In three voice final cadences, what consonances are allowed other than the goal note?

One of the upper voices may sound a third or fifth above the final.

In three voice final cadences, can the 8-7-8 motion be placed in the lowest voice in final cadences?

No, the 8-7-8 motion should be in one of the upper voices. 8-7-8 in the lowest voice signals an intermediate cadence.

In three voices, how do you treat decending stepwise dissonant 3rd quarters?

Any motion may be used against decending stepwise dissonant 3rd quarter at any time.

In invertible cannon at the twelfth, can 6ths occur in consonant positions?

No 6ths can occur in consonant positions between the lowest voice and the middle or highest voice.

In invertible cannon at the twelfth, can 4ths occur?

No 4ths may occur between the middle and top voice.

In four voices, never use _____ chords at the begining or the end of a piece.

6/3 chords.

In four voices, can you use root position diminished triads?

No, they may be used in first inversion while following the other rules for diminished triads in three voices.

In four voices, how often should you use 6/3 chords?

Less than a quarter of the time.

Never have more than an ______ between soprano/alto and alto/tenor.

Octave

In four voices, how does one use augmented fourth species?

To create 6/4, 5/4, or 6/5 chords.

How many pitch classes must be present in each four voiced verticle sonority?

At least three

Describe thew paralell sixth model in four voices

The soprano and tenor move in paralell sixths with eachother while the bass alternates between the third and fifth below. When the base is a third below the tenor the alto will be a third above. When the base is a fifth below the tenor the alto will be a fourth above.

In four parts, what kind of motion may be used to get to a perfect interval?

Contrary, oblique, or similar motion even if both voices skip.

In three voice counterpoint with a CF, what is wrong with this measure?

The tenor and base move together against the CF to a 7th. If the two added lines move together against the CF they must be consonant with eachother even if dissonant with the CF.

In three voiced counterpoint, why is this ok?

A voice may enter on a note making a dissonance if it is the agent of a suspension.

What are the legal dissonant suspensions above?

The 7-6 and the 4-3 suspension resolving with the top voice moving down a step to an imperfect consonance.

What are the legal dissonant suspensions below?

The 2-3 suspension with the lowest voice resolving down a step to an imperfect consonance.

If a consonant half note is followed by two decending quarter notes, which quarter note can be dissonant?

When a consonant half note tied or attacked is followed by two decending stepwise quarter notes the first may be dissonant.

If two quarters are followed by a half note, can the half note be dissonant?

No, When two quarters on a downbeat are followed by a half, the half must be consonant.

Is this legal?

No, dotted whole notes may only occur on a downbeat

Is this legal?

No, dotted half notes may occur on the downbeat or second half note beat and must be consonant (except in fourth species).

Can you tie from a weak quarter?

No, Never tie from a weak quarter

Is this legal?

Eighth notes can be used on weak quarter beats in passing or lower neighbour motion, but not upper neighbour motion.

Is this legal?

Suspensions may be embelished by an anticipation of the resolution which must be heard on the second half-note beat.