Bending at the mid-joint of a limb is indicated with a stroke through the stem of the musical note.
Figure "a" denotes a little bending.
Figure "b" denotes a little more bending.
Figure "c" denotes a lot of bending.
Figure "d" denotes diminished bending.
Figure "e" denotes a augmented bending.
Figure "f" denotes slight bending.
Figure "g" denotes first degree bending (hand, for example)
Figure "h" denotes augmented first degree bending (whole
arm, whole body, whole leg).1
Figure "i" denotes second degree bending (lower
arm, lower torso, lower leg).1
Figure "j" denotes diminished third degree bending (hand,
foot, head).1
1
"Choreo-graphics: A Comparison of Dance Notation
Systems From Fifteenth Century to the Present",
by Ann Hutchinson Guest, Gordon Breach, 1959, p. 80