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#!/usr/bin/perl
use strict;
use warnings;
use utf8;
use feature ':5.10';
use MP3::Tag;

binmode STDOUT, ':utf8';
binmode STDIN, ':utf8';

my $dir = shift;

mp3_list($dir);

sub mp3_list {

my ($top) = @_;

if (-d $top) {

my $DIR;
opendir $DIR, $top;

while (my $item = readdir $DIR) {
next if $item eq '.' || $item eq '..';
mp3_list("$top/$item");
}
}

else {
if ( $top =~ /\.mp3$/ ) {

my $mp3 = MP3::Tag->new($top);
say $mp3->title;
}
}

}