Role::Tiny to be applied on top Music::Note with comparison methods added and overloaded operators. Also adds a clone method and a way to generate Music::Interval objects via a Music::Note.
If you're working with a Music::Note subclass:
use parent 'Music::Note';
Or if you're working in a script and just want the behaviour:
use Role::Tiny (); # Don't import R::T into current namespace for cleanliness
Assuming you're working in a script:
my $note = Music::Note->new('C#');
my $other = Music::Note->new('E');
my $true = $other->gt($note);
$true = $other > $note;
$true = $note->lt($other);
$true = $note < $other;
$true = $note->eq($note->clone);
$true = $note == $note->clone;
$true = $note->gte($note->clone);
$true = $note >= $note->clone;
$true = $note->lte($note->clone);
$true = $note <= $note->clone;
my $interval = $note->interval($other);
my $conveneince_interval = $note->interval(%args_for_music_interval);
Don't try to do something like $note == 90>. The overloading expects a Music::Note on both sides. To perform comparisons versus note and not a note you should be doing $note->format('midi') == 90.
$note == 90
$note->format('midi') == 90
Kieren Diment firstname.lastname@example.org
This code can be redistributed on the same terms as perl itself
If called with a single Music::Note as argument is returns a Music::Interval object
my $interval = $self->get_interval($other);
If called with an arguments hash
my $interval = $self->get_interval(%args_for_music_interval)
Note that this will default to 1 for the following constructor attributes, so if you don't want these values you'll have to explicitly set them to something else in the constructor.
NOTE: It would be nice to have the subtract method return a Music::Interval but it's a complex module, and only seems to deal with intervals inside a single octave.
To install Music::Note::Role::Operators, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.