MusicXML 4.1 Draft
MusicXML 4.1 Draft > MusicXML Reference > Examples > <beat-unit>

<beat-unit>

beat-unit-element

<direction-type>
   <metronome font-family="EngraverTextT" font-size="12" parentheses="yes">
      <beat-unit>quarter</beat-unit>
      <per-minute>144</per-minute>
   </metronome>
</direction-type>