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Interval Abbreviation
Interval Inversion
Compound Intervals
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Interval Abbreviation

For convenience, intervals are often abbreviated with a letter for the quality and a number for the generic size.

diminished	d
minor	m
Perfect	P
Major	M
Augmented	A

Notice that the abbreviations for diminished (d) and minor (m) are written in lower case! So, abbreviated, a Perfect 4th would be P4, a diminished octave would be d8, etc.

Write the abbreviated versions of the following intervals:

minor 6th:
Major 2nd:
diminished 4th:
Augmented 6th:

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