<xs:attributeGroup name="mei_att.tempo.log.attribute.func">
<xs:attribute name="func">
<xs:annotation>
<xs:documentation>Records the function of a tempo indication.</xs:documentation>
</xs:annotation>
<xs:simpleType>
<xs:restriction base="xs:token">
<xs:enumeration value="continuous">
<xs:annotation>
<xs:documentation>Marks a gradual change of tempo, such as "accel." or "rit."</xs:documentation>
</xs:annotation>
</xs:enumeration>
<xs:enumeration value="instantaneous">
<xs:annotation>
<xs:documentation>Represents a static tempo instruction, such as a textual term like "Adagio", a metronome marking like "♩=70", or a combination of text and metronome indication.</xs:documentation>
</xs:annotation>
</xs:enumeration>
<xs:enumeration value="metricmod">
<xs:annotation>
<xs:documentation>Captures a change in pulse rate (tempo) and/or pulse grouping (subdivision) in an "equation" of the form [tempo before change] = [tempo after change].</xs:documentation>
</xs:annotation>
</xs:enumeration>
<xs:enumeration value="precedente">
<xs:annotation>
<xs:documentation>Indicates a change in pulse rate (tempo) and/or pulse grouping (subdivision) in an "equation" of the form [tempo after change] = [tempo before change]. The term "precedente" often appears following the "equation" to distinquish this kind of historical usage from the modern metric modulation form.</xs:documentation>
</xs:annotation>
</xs:enumeration>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:attributeGroup> |