Class: Fet::Degrees

Inherits:
Object
  • Object
show all
Defined in:
lib/fet/degrees.rb

Overview

This class handles determining the degrees for a given root

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root_name:, octave_value:) ⇒ Degrees

Returns a new instance of Degrees.



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# File 'lib/fet/degrees.rb', line 12

def initialize(root_name:, octave_value:)
  self.root_name = root_name
  self.octave_value = octave_value
  self.degree_to_note_name = generate_degree_to_note_name
end

Instance Attribute Details

#octave_value ⇒ Object

Returns the value of attribute octave_value.



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# File 'lib/fet/degrees.rb', line 9

def octave_value
  @octave_value
end

#root_name ⇒ Object

Returns the value of attribute root_name.



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# File 'lib/fet/degrees.rb', line 9

def root_name
  @root_name
end

Instance Method Details

#degree_index_of_midi_value(midi_value) ⇒ Object 



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# File 'lib/fet/degrees.rb', line 26

def degree_index_of_midi_value(midi_value)
  return MidiNote.new(midi_value).degree(root_midi_value)
end

#degree_names_of_midi_value(midi_value) ⇒ Object 



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# File 'lib/fet/degrees.rb', line 22

def degree_names_of_midi_value(midi_value)
  return Degree::DEGREE_NAMES[degree_index_of_midi_value(midi_value)]
end

#note_name_of_degree(degree_name) ⇒ Object 



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# File 'lib/fet/degrees.rb', line 30

def note_name_of_degree(degree_name)
  return degree_to_note_name[Degree.new(degree_name).degree_name]
end

#root_midi_value ⇒ Object 



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# File 'lib/fet/degrees.rb', line 18

def root_midi_value
  return MidiNote.from_note(root_name, octave_value).midi_value
end

#select_degrees_from_midi_values(midi_value_range, number_of_degrees, degrees_filter) ⇒ Object 



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# File 'lib/fet/degrees.rb', line 34

def select_degrees_from_midi_values(midi_value_range, number_of_degrees, degrees_filter)
  return select_degrees_from_midi_values_recursive(filtered_midi_values(midi_value_range, degrees_filter), [], number_of_degrees)
end