Abjad leaves should only format "before" and "after" sites. (Though Abjad containers can format "before", "after", "opening" and "closing" sites.) Because abjad.LilyPondLiteral objects almost always get attached to leaves (instead of containers), it makes sense to change the default format site of LilyPond literals from (container-like) "opening" to (leaf-like) "before".
Abjad leaves should only format "before" and "after" sites. (Though Abjad containers can format "before", "after", "opening" and "closing" sites.) Because
abjad.LilyPondLiteralobjects almost always get attached to leaves (instead of containers), it makes sense to change the default format site of LilyPond literals from (container-like) "opening" to (leaf-like) "before".