<classSpec ident="att.meterSigGrp.log" module="MEI.cmn" type="atts">
<desc xml:lang="en">Logical domain attributes.</desc>
<attList>
<attDef ident="func" usage="req">
<gloss versionDate="2022-10-18" xml:lang="en">function</gloss>
<desc xml:lang="en">Function of the meter signature group.</desc>
<valList type="closed">
<valItem ident="alternating">
<desc xml:lang="en">Meter signatures apply to alternating measures.</desc>
</valItem>
<valItem ident="interchanging">
<desc xml:lang="en">Meter signatures are interchangeable,
<abbr>e.g.</abbr>, 3/4 and 6/8.</desc>
</valItem>
<valItem ident="mixed">
<desc xml:lang="en">Meter signatures with different unit values are used to express a complex metrical
pattern that is not expressible using traditional means, such as 2/4+1/8.</desc>
</valItem>
<valItem ident="other">
<desc xml:lang="en">Meter signatures in a relationship not covered by the values alternating, interchanging
or mixed.</desc>
</valItem>
</valList>
</attDef>
</attList>
</classSpec>