autoclef bool

Define the default starting clefs.

When set, the clefs are initialized to auto. Otherwise, the starting clefs are treble clefs.

For abc2svg, the clefs are always auto by default.

X:1
M:C
L:1/4
%%autoclef 0
K:C
cGEC | E,G,Cc |

X:2
M:C
L:1/4
K:C
cGEC | E,G,Cc |