Or, right here, have you Super Searched?

This is the kind of lazy question which you'll find disapproved here.

Please read On asking for help and How do I post a question effectively?.

This worked last time I tried it. The code and test files are at z-sampler

#!/usr/bin/perl
use SDL;
use SDL::Mixer;
use SDL::Music;
use SDL::App;
use SDL::Event;
use SDL::Rect;
use SDL::Color;
use SDL::Tool::Font;

# See
# http://aspn.activestate.com/ASPN/CodeDoc/SDL-sdlpl/SDL/Mixer.html

$|++;
$width  = 400;
$height = 300;

my $app = new SDL::App(
    -title  => "Sampler",
    -width  => 400,
    -height => 300,
    -depth  => 8
);

my $rect = SDL::Rect->new(
    -height => 250,
    -width  => 360,
    -x      => 20,
    -y      => 20,
);

my $color = SDL::Color->new(
    -r => 0x00,
    -g => 0xff,
    -b => 0xff,
);

$app->fill( $rect, $color );
$app->update($rect);

my $fontobj = new SDL::Tool::Font(
    -italic => 1,                    #-normal -bold -italic -underline
    -ttfont => 'arial.ttf',
    -size   => 20,
    -fg     => $SDL::Color::black,
    -bg     => $SDL::Color::black,
);

#SDL::Tool::Font::print( $app, 30,30,"hello World");
$fontobj->print( $app, 30, 30, "m ->music" );
$fontobj->print( $app, 30, 50, "c ->cannon" );
$fontobj->print( $app, 30, 70, "e ->explosion" );
$fontobj->print( $app, 30, 120, "esc ->quit" );


$app->update($rect);

$mixer = SDL::Mixer->new(
    -frequency => MIX_DEFAULT_FREQUENCY,
    -format    => MIX_DEFAULT_FORMAT,
    -channels  => MIX_DEFAULT_CHANNELS,
    -size      => 4096
);

# provides 8 channels of
# 16 bit audio at 22050 Hz. and a single channel of music.

my $music  = new SDL::Music('1bb.mp3');       #background can be mp3,o
+gg or wav
my $sound0 = new SDL::Sound('cannon.wav');    #effects must be wav
$sound0->volume(128);                         #max
my $sound1 = new SDL::Sound('explosion.wav');
$sound1->volume(128);                         #max

$mixer->music_volume(MIX_MAX_VOLUME);

my $event  = new SDL::Event;
my %events = (
    SDL_KEYUP() => sub {
        my ($e) = @_;
        my $key = SDL::GetKeyName( $e->key_sym() );
        print "$key up\n";

        if ( $key eq 'm' ) { $mixer->play_music( $music, 10 ) }

        if ( $key eq 'c' ) { $mixer->play_channel( 0, $sound0, 0 ) }
        if ( $key eq 'e' ) { $mixer->play_channel( 1, $sound1, 0 ) }

    },

    SDL_KEYDOWN() => sub {
        my ($e) = @_;
        if ( $e->key_sym() == SDLK_ESCAPE ) { exit }
        my $key = SDL::GetKeyName( $e->key_sym() );
        print "$key down\n";
    },

    SDL_QUIT() => sub { exit },
);

$app->loop( \%events );
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