/ 
Music-Cadence-0.0105
River stage one • 1 direct dependent • 1 total dependent
/ Music::Cadence

NAME

Music::Cadence - Provide musical cadence chords

VERSION

version 0.0105

SYNOPSIS

use Music::Cadence;

my $mc = Music::Cadence->new;

my $notes = $mc->cadence(
  key    => 'C',
  scale  => 'major',
  type   => 'perfect',
  octave => 4,
); # [['G4','B4','D4'], ['C4','E4','G4']]

$notes = $mc->cadence(
  key     => 'C',
  scale   => 'major',
  type    => 'imperfect',
  leading => 2,
  octave  => 0,
); # [['D','F','A'], ['G','B','D']]

DESCRIPTION

Music::Cadence provides musical cadence chords.

* This module is a very naive implementation of the actual theory. YMMV.

ATTRIBUTES

None.

METHODS

new

$mc = Music::Cadence->new;

Create a new Music::Cadence object.

cadence

$notes = $mc->cadence;  # Use defaults

$notes = $mc->cadence(
  key     => $key,      # Default: C
  scale   => $scale,    # Default: major
  type    => $type,     # Default: perfect
  leading => $leading,  # Default: 1
  octave  => $octave,   # Default: 0
);

Return an array reference of the chords of the cadence type (and leading chord when type is imperfect) based on the given key and scale name. The octave is optional and if given, should be a number greater than or equal to zero.

Supported cadences are:

perfect
imperfect
plagal
deceptive

Supported scales are:

ionian / major
dorian
phrygian
lydian
mixolydian
aeolian / minor
locrian

The leading chord is a number for each diatonic scale chord to use for the first imperfect cadence chord. So for the key of C major this is:

CM: 1
Dm: 2
Em: 3
FM: 4
GM: 5
Am: 6
Bo: 7

SEE ALSO

Moo

Music::Chord::Note

Music::Scales

Music::ToRoman

https://en.wikipedia.org/wiki/Cadence

https://www.musictheoryacademy.com/how-to-read-sheet-music/cadences/

TO DO

Evaded cadence

Half cadences

AUTHOR

Gene Boggs <gene@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2019 by Gene Boggs.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.