data.FRET In a guitar chord diagram, the fret where the finger should be placed. Since guitar chord diagrams are limited to the range of frets that fall under the hand, the value here is also limited. The pos (position) attribute on the chordDef element must be used to indicate at which fret this range begins.
Module MEI
Used by
<rng:data type= "positiveInteger">
<rng:param name= "minInclusive"> 1 </rng:param>
<rng:param name= "maxInclusive"> 5 </rng:param>

MEI Guidelines Version 3.0.0