def get_note_fields(note, get_empty=False):
    """
    Get a list of field data for download.

    Check all field names and return source and destination fields for
    downloading audio.
    """
    field_names = [item[0] for item in note.items()]
    field_data_list = []
    for afk in audio_field_keys:
        for fn in field_names:
            if afk in fn.lower():
                if meaning_in_reading_field:
                    try:
                        # Here, too, first try reading, then try other
                        # fields.
                        field_data_list.append(
                            field_data(
                                note, fn, readings=True, get_empty=get_empty))
                    except (KeyError, ValueError):
                        # No or empty readings field.
                        pass
                    try:
                        field_data_list.append(
                            field_data(
                                note, fn, readings=False, get_empty=get_empty))
                    except (KeyError, ValueError):
                        # No or empty 'normal' field
                        pass
                else:
                    # We have to call field_data twice to get the base
                    # text and reading.
                    try:
                        fd_base = field_data(
                            note, fn, readings=False, get_empty=get_empty)
                    except (KeyError, ValueError):
                        continue
                    try:
                        fd_read = field_data(
                            note, fn, readings=True, get_empty=get_empty)
                    except (KeyError, ValueError):
                        # No reading field after all.
                        pass
                    else:
                        # Now we have to put together the two
                        # results. I guess i could have used a named
                        # tuple above. Oh, well. Kludge branch.
                        field_data_list.append(
                            (fd_base[0], fd_base[1], fd_base[2], fd_base[3],
                             fd_read[4], True))
                    # Use what we have from the first try, so that we
                    # try GoogleTTS (wiktionary) as well.
                    field_data_list.append(fd_base)
    return field_data_list