from knotsvg import *
knotsvg(
    ['M 5,0 C 5,-2 6,-5 7,-4 8,-3 6,-2 4,-2 2,-2 0,-3 1,-4 2,-5 3,-2 3,0'],
    [-1, 1, 1, -1], title=['Tête d\'alouette','(demi-clé renversée)'], title_insert=[(6,-1),(6,0)])