(music) A type of tritone in musical composition comprising six semitones. It spans four diatonic scale degrees like a perfect fourth but with an extension of a semitone. The number of diatonic degrees it spans is what distinguishes it from a diminished fifth.

Alternative spelling of fourth wall

One of sixty-four equal parts of a whole.

The ordinal form of the number sixty-four, describing a person or thing in position number 64 of a sequence.

One of ninety-four equal parts of a whole.

The ordinal form of the number ninety-four, describing a person or thing in position number 94 of a sequence.

One of seventy-four equal parts of a whole.

The ordinal form of the number eighty-four, describing a person or thing in position number 84 of a sequence.

The ordinal form of the number seventy-four, describing a person or thing in position number 74 of a sequence.

One of eighty-four equal parts of a whole.