little function that converts numbers to words. This could be more efficient,
    and won't work if the number is bigger than 999 but it's for stave names,
    and I doubt any part would have more than 10 staves let alone 999.

def NumbersToWords(number):
    """
    little function that converts numbers to words. This could be more efficient,
    and won't work if the number is bigger than 999 but it's for stave names,
    and I doubt any part would have more than 10 staves let alone 999.
    """

    units = [
        'one',
        'two',
        'three',
        'four',
        'five',
        'six',
        'seven',
        'eight',
        'nine']
    tens = [
        'ten',
        'twenty',
        'thirty',
        'forty',
        'fifty',
        'sixty',
        'seventy',
        'eighty',
        'ninety']
    output = ""
    if number != 0:
        str_val = str(number)
        if 4 > len(str_val) > 2:
            output += units[int(str_val[0]) - 1]
            output += "hundred"
            if str_val[1] != 0:
                output += "and" + tens[int(str_val[1]) - 1]
                if str_val[2] != 0:
                    output += units[int(str_val[2]) - 1]
        if 3 > len(str_val) > 1:
            output += tens[int(str_val[0]) - 1]
            if str_val[1] != 0:
                output += units[int(str_val[1]) - 1]
        if 2 > len(str_val) == 1:
            output += units[int(str_val[0]) - 1]
    else:
        output = "zero"
    return output