if (!snd_is_playing(global.currentsong[1]))
{
    global.currentsong[0] = snd_init("mus_birdnoise.ogg");
    global.currentsong[1] = mus_loop_ext(global.currentsong[0], 1, 1);
}
dk = snd_loop(snd_smile);
snd_volume(dk, 0, 0);
snd_pitch(dk, 0.15);
scr_depth();