<group-abbreviation-display>

<part-group number="3" type="start">
   <group-name>Trumpet in B flat</group-name>
   <group-name-display>
      <display-text>Trumpet in B</display-text>
      <accidental-text>flat</accidental-text>
   </group-name-display>
   <group-abbreviation>Trp. in B flat</group-abbreviation>
   <group-abbreviation-display>
      <display-text>Trp. in B</display-text>
      <accidental-text>flat</accidental-text>
   </group-abbreviation-display>
   <group-symbol default-x="-10">square</group-symbol>
   <group-barline>yes</group-barline>
</part-group>