The classic perfect cadence is ii7b V I

The Tenor part must always carry the dissonance

The leading note should always fall to the third of the tonic.

The gap between the tenor and bass should be small

You should try to move the outer parts in contrary motion

Semiquavers should be used as passing notes

In a Ib chord you should always double the fifth

A good chord progression to use at imperfect cadences is I Ic V

Dissonances must be prepared, sounded and resolved

The leading note can leap to the third when unable to resolve to the fifth

When using a cadential 6/4 (Ic V I) you must treat the fourth above the bass as a dissonance

In a V7 chord, the seventh must always be prepared

The seventh must always fall

It is a good idea to use viib I at the final cadence

Always use a tiecre de picardi to finish a chorale when in a minor key