data.LAYERSCHEME Indicates how stems should be drawn when more than one layer is present and stem directions are not indicated on the notes/chords themselves. '1' indicates that there is only a single layer on a staff. '2o' means there are two layers with opposing stems. '2f' indicates two 'free' layers; that is, opposing stems will be drawn unless one of the layers has 'space'. In that case, stem direction in the remaining layer will be determined as if there were only one layer. '3o' and '3f' are analogous to '2o' and '2f' with three layers allowed.
Module MEI
Used by
data.LAYERSCHEME = "1" | "2o" | "2f" | "3o" | "3f"

MEI Guidelines Version 2.1.1

Data Types and Macros