<macroSpec ident="data.LAYERSCHEME" module="MEI" type="dt">
<desc>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.</desc>
<content>
<valList type="closed">
<valItem ident="1">
<desc>Single layer.</desc>
</valItem>
<valItem ident="2o">
<desc>Two layers with opposing stems.</desc>
</valItem>
<valItem ident="2f">
<desc>Two layers with 'floating' stems.</desc>
</valItem>
<valItem ident="3o">
<desc>Three layers with opposing stems.</desc>
</valItem>
<valItem ident="3f">
<desc>Three layers with 'floating' stems.</desc>
</valItem>
</valList>
</content>
</macroSpec>