...this lesson continues from basic intervals page 1.
Perfect Fifth Interval
A perfect fifth interval is equal to 7 half-steps.
A perfect 5th is abbreviated P5.
A perfect fifth above C is G.
Minor Sixth Interval
A minor sixth interval is equal to 8 half-steps.
A minor 6th is abbreviated m6.
A minor sixth above C is Ab.
Major Sixth Interval
A major sixth interval is equal to 9 half-steps.
A major 6th is abbreviated M6.
A major sixth above C is A.
Minor Seventh Interval
A minor seventh interval is equal to 10 half-steps.
A minor 7th is abbreviated m7.
A minor seventh above C is Bb.
Major Seventh Interval
A major seventh interval is equal to 11 half-steps.
A major 7th is abbreviated M7.
A major seventh above C is B.
Perfect Octave Interval
A perfect octave interval is equal to 12 half-steps.
A perfect octave is abbreviated P8.
A perfect octave above C is C.
There are names for intervals spanning beyond an octave. Those will be covered in a later musical intervals lesson.