Interval¶

abstract class abjad.pitch.Interval.Interval(argument)¶

Abstract interval.

Attributes Summary

`__abs__`	Gets absolute value of interval.
`__float__`	Coerce to semitones as float.
`__ge__`	Return a >= b.
`__gt__`	Return a > b.
`__le__`	Return a <= b.
`__lt__`	Is true when interval is less than argument.
`__neg__`	Negates interval.
`__str__`	Gets string representation of interval.
`cents`	Gets cents of interval.
`direction_number`	Gets direction number of interval
`interval_class`	Gets interval-class of interval.
`number`	Gets number of interval.
`octaves`	Gets octaves of interval.
`semitones`	Gets semitones of interval.
`transpose`	Transposes pitch_carrier by interval.

Special methods

abstract __abs__()¶

Gets absolute value of interval.

Returns new interval.

(AbjadValueObject).__copy__(*arguments)¶

Copies Abjad value object.

Returns new Abjad value object.

(AbjadValueObject).__eq__(argument)¶

Is true when all initialization values of Abjad value object equal the initialization values of argument.

Returns true or false.

__float__()¶

Coerce to semitones as float.

Returns float.

(AbjadObject).__format__(format_specification='')¶

Formats Abjad object.

Set format_specification to '' or 'storage'. Interprets '' equal to 'storage'.

Returns string.

__ge__(other, NotImplemented=NotImplemented)¶: Return a >= b. Computed by @total_ordering from (not a < b).

__gt__(other, NotImplemented=NotImplemented)¶: Return a > b. Computed by @total_ordering from (not a < b) and (a != b).

(AbjadValueObject).__hash__()¶

Hashes Abjad value object.

Returns integer.

__le__(other, NotImplemented=NotImplemented)¶: Return a <= b. Computed by @total_ordering from (a < b) or (a == b).

abstract __lt__(argument)¶

Is true when interval is less than argument.

Returns true or false.

abstract __neg__()¶

Negates interval.

Returns interval.

(AbjadObject).__repr__()¶

Gets interpreter representation of Abjad object.

Returns string.

__str__()¶

Gets string representation of interval.

Returns string.

Methods

transpose(pitch_carrier)¶

Transposes pitch_carrier by interval.

Returns new pitch carrier.

Read-only properties

cents¶

Gets cents of interval.

Returns nonnegative number.

abstract direction_number¶

Gets direction number of interval

Returns integer.

abstract interval_class¶

Gets interval-class of interval.

Returns interval-class.

abstract number¶

Gets number of interval.

Returns integer.

abstract octaves¶

Gets octaves of interval.

Returns nonnegative number.

abstract semitones¶

Gets semitones of interval.

Returns integer or float.