<classSpec xmlns="http://www.tei-c.org/ns/1.0" rend="add" ident="att.hairpin.log" module="MEI.cmn" type="atts">
<desc xml:lang="en">Logical domain attributes.</desc>
<classes>
<memberOf key="att.controlEvent"/>
<memberOf key="att.duration.additive"/>
<memberOf key="att.startEndId"/>
<memberOf key="att.timestamp2.log"/>
</classes>
<attList>
<attDef ident="form" usage="req">
<desc xml:lang="en">Captures the visual rendition and function of the hairpin; that is, whether it
indicates an increase or a decrease in volume.</desc>
<valList type="closed">
<valItem ident="cres">
<desc xml:lang="en">Crescendo;
<abbr>i.e.</abbr>, louder.</desc>
</valItem>
<valItem ident="dim">
<desc xml:lang="en">Diminuendo;
<abbr>i.e.</abbr>, softer.</desc>
</valItem>
</valList>
</attDef>
<attDef ident="niente" usage="opt">
<desc xml:lang="en">Indicates that the hairpin starts from or ends in silence. Often rendered as a small
circle attached to the closed end of the hairpin. See Gould, p. 108.</desc>
</attDef>
</attList>
</classSpec>