21. This lets close and widespread octaves sound pure, and produces virtually beatless perfect fifths . 22. Because these chords occur frequently in much music, the perfect fifth occurs just as often. 23. The perfect fifth is a basic element in the construction of major and minor extensions. 24. Angels closer Troy Percival pitched a perfect fifth inning. 25. For instance, the above-mentioned Pythagorean perfect fifth and fourth are also used in just intonation. 26. For example, a perfect fifth above G ( D ) is the major tone above C. 27. A neutral seventh can be formed by stacking a neutral third together with a perfect fifth . 28. Examples include the minor third or perfect fifth . 29. The cor anglais is usually notated in the treble clef, a perfect fifth higher than sounding. 30. The octave, major third and perfect fifth are the three notes present in a major chord.