 of <var>1/4</var> is used.
    There are two ways to specify the duration of a music element, i.e. note, chord, rest, ...<br/>
    One option is the duration command: the symbol <mark>`</mark> followed by a fraction<br/>
    For example the directive <code>`1/8</code> denotes a <var>1/8</var> duration (or <var>0.125</var> of a measure in decimal representation).<br/>
</p>

<p>
    The other way to assign duration to a pitch or chord is to attach a number that represents the reciprocal of the actual duratio