Class: Webern::Matrix

Inherits:

Object

• Object
• Webern::Matrix

show all

Defined in:

lib/webern/matrix.rb

Constant Summary

BASIC_ROW =

Array(0..11)

Instance Attribute Summary (collapse)

• - (Object) prime_row

  Returns the value of attribute prime_row.

Instance Method Summary (collapse)

• - (Matrix) initialize(row) constructor

  A new instance of Matrix.

• - (Object) inversions
• - (Object) primes
• - (Object) retrograde_inversions
• - (Object) retrogrades

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# File 'lib/webern/matrix.rb', line 6

def initialize(row)
  @prime_row = row
end

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# File 'lib/webern/matrix.rb', line 3

def prime_row
  @prime_row
end

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# File 'lib/webern/matrix.rb', line 14

def inversions
  BASIC_ROW.map{|note| @prime_row.transpose(note).inversion }
end

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# File 'lib/webern/matrix.rb', line 10

def primes
  BASIC_ROW.map{|note| @prime_row.transpose(note) }
end

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# File 'lib/webern/matrix.rb', line 22

def retrograde_inversions
  BASIC_ROW.map{|note| @prime_row.transpose(note).retrograde_inversion }
end

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# File 'lib/webern/matrix.rb', line 18

def retrogrades
  BASIC_ROW.map{|note| @prime_row.transpose(note).retrograde }
end