'Checks a composition to see if the highest note within it is repeated.
Args:
composition: A list of integers representing the notes in the piece.
Returns:
True if the lowest note was unique, False otherwise.'

def detect_high_unique(self, composition):

    max_note = max(composition)
    if (list(composition).count(max_note) == 1):
        return True
    else:
        return False
