function scr_musicalbattlebullet(arg0, arg1, arg2)
{
    var _bulletDepth = 0;
    var _bpm = 60;
    var _yTop = -40;
    var _instruments = [265, 266, 267, 268, 269, 270, 271];
    var _instrumentsB = [272, 273, 274, 275, 276, 277, 278];
    var _instrumentsAlt = [262, 263, 264];
    var _xLanes = [180, 220, 260, 300, 340, 380, 420, 460];
    var _yLanes = [280, 280, 280, 280, 280, 280, 280, 280];
    var _laneType = [1, 1, 0, 0, 0, 0, 1, 1];
    var _bps = _bpm / 60;
    var _spb = 1 / _bps;
    var _bpf = _bps / game_get_speed(gamespeed_fps);
    var _laneSelected = arg0;
    var _lanes = array_length_1d(_laneSelected);
    for (var i = 0; i < _lanes; i++)
    {
        if (_laneSelected[i] == 1 || _laneSelected[i] == 2)
        {
            var _bullet = instance_create_depth(_xLanes[i], _yTop, _bulletDepth, obj_musicalbattlebullet);
            if (_laneSelected[i] == 2)
                _bullet.varianty = 300;
            with (_bullet)
            {
                bulletType = _laneType[i];
                image_index = bulletType;
                if (bulletType == 1)
                {
                    image_yscale *= 0.5;
                    image_alpha *= 0.7;
                }
                yTarget = _yLanes[i];
                soundTimeStep = audio_sound_get_track_position(global.batmusic[1]);
                beats = soundTimeStep / _spb;
                var _length = audio_sound_length(global.batmusic[1]);
                beatMax = _length / _spb;
                bpf = _bpf;
                spb = _spb;
                beats = soundTimeStep / _spb;
                targetBeat = ceil(beats) + arg1;
                var _measure = (targetBeat div 2) % 2;
                if (_measure)
                    instrument = _instrumentsB[irandom(6)];
                else
                    instrument = _instruments[irandom(6)];
                if (i == 1)
                    instrument = _instrumentsAlt[0];
                if (i == 6)
                    instrument = _instrumentsAlt[1];
                if (i == 7)
                    instrument = _instrumentsAlt[2];
                frames = arg2;
                framesAway = (targetBeat - beats) / _bpf;
                if (framesAway < frames)
                    show_debug_message("not enough time for this bullet!!");
            }
        }
    }
}