how to categorized audio song list by album in android

I am working on music app player.I got all song from sd card correctly. but I am stuck on sorting of audio song by album. my code is here

public void getSongList(){
    //query external audio
    ContentResolver musicResolver = getActivity().getContentResolver();
    Uri musicUri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
    String[] projection = new String[] { android.provider.MediaStore.Audio.Media._ID, android.provider.MediaStore.Audio.Media.ALBUM, 
            android.provider.MediaStore.Audio.Media.ARTIST };
    String selection = null;
    String[] selectionArgs = null;
    String sortOrder = android.provider.MediaStore.Audio.Media.ALBUM + " ASC";

    Cursor musicCursor = musicResolver.query(musicUri, projection, selection, selectionArgs, sortOrder);
    //iterate over results if valid
    if(musicCursor!=null && musicCursor.moveToFirst()){
        //get columns
        int titleColumn = musicCursor.getColumnIndex
                (android.provider.MediaStore.Audio.Media.TITLE);
        int idColumn = musicCursor.getColumnIndex
                (android.provider.MediaStore.Audio.Media._ID);
        int artistColumn = musicCursor.getColumnIndex
                (android.provider.MediaStore.Audio.Media.ARTIST);
        int pathColumn = musicCursor.getColumnIndex
                (android.provider.MediaStore.Audio.Media.DATA);
        int durationColumn = musicCursor.getColumnIndex
                (android.provider.MediaStore.Audio.Media.DURATION);

        //add songs to list

            long thisId = musicCursor.getLong(idColumn);
            String thisTitle = musicCursor.getString(titleColumn);
            String thisArtist = musicCursor.getString(artistColumn);
            String thisPath = musicCursor.getString(pathColumn);//getRealPathFromURI(pathColumn);
            String thisDuration = musicCursor.getString(durationColumn);
            long durationInLong = 0;
            if(thisDuration!=null){
              durationInLong = Long.parseLong(thisDuration);
            }
            String finalDuration = utils.milliSecondsToTimer(durationInLong);
            songList.add(new Song(thisId, thisTitle, thisArtist,thisPath,finalDuration,firstsong));

        } 
        while (musicCursor.moveToNext());
    }

how to get song list by album or genres or artist.