<data.DURQUALITY.mensural>

Duration attribute values of a given note symbol for the mensural repertoire.
Module
MEI.mensural
Used by
These class-based attributes use data.DURQUALITY.mensural
att.duration.quality/@dur.qualityEncodes the durational quality of a mensural note using the values provided by the data.DURQUALITY.mensural datatype (i.e., the perfect / imperfect / altered / major / minor / duplex quality of a note).
Allowed Values
perfectaThree times the duration of the note in the next smaller degree.
imperfectaTwo times the duration of the note in the next smaller degree.
alteraTwice the original duration of the note (only usable in perfect mensurations).
minorCategory of a regular semibrevis in Ars antiqua, equivalent to a third of a brevis.
maiorCategory of an altered semibrevis in Ars antiqua, equivalent to two minor semibrevis.
duplexOne of the three categories of a longa in Ars antiqua ('duplex', 'perfecta', and 'imperfecta'). A duplex longa is twice as long as a regular longa.
Declaration
<macroSpec ident="data.DURQUALITY.mensural" module="MEI.mensural" type="dt">
<desc>Duration attribute values of a given note symbol for the mensural repertoire.</desc>
<content>
<valList type="closed">
<valItem ident="perfecta">
<desc>Three times the duration of the note in the next smaller degree.</desc>
</valItem>
<valItem ident="imperfecta">
<desc>Two times the duration of the note in the next smaller degree.</desc>
</valItem>
<valItem ident="altera">
<desc>Twice the original duration of the note (only usable in perfect mensurations).</desc>
</valItem>
<valItem ident="minor">
<desc>Category of a regular semibrevis in Ars antiqua, equivalent to a third of a brevis.</desc>
</valItem>
<valItem ident="maior">
<desc>Category of an altered semibrevis in Ars antiqua, equivalent to two minor semibrevis.</desc>
</valItem>
<valItem ident="duplex">
<desc>One of the three categories of a longa in Ars antiqua ('duplex', 'perfecta', and 'imperfecta'). A duplex longa is twice as long as a regular longa.</desc>
</valItem>
</valList>
</content>
</macroSpec>