<informaltable>
<tgroup cols='2' align='left' colsep='1' rowsep='1'>
<tbody>
<row>
 <entry>Minor second: 1</entry>
 <entry>Perfect fourth: 2</entry>
 <entry>Major sixth: 3 </entry>
 <entry>Minor ninth: 4</entry>
</row>
<row>
 <entry>Major second: q</entry>
 <entry>Tritone: w</entry>
 <entry>Minor seventh: e</entry>
 <entry>Major ninth: r</entry>
</row>
<row>
 <entry>Minor third: a</entry>
 <entry>Perfect fifth: s</entry>
 <entry>Major seventh: d</entry>
 <entry>Minor tenth: f</entry>
</row>
<row>
 <entry>Major third: z</entry>
 <entry>Minor sixth: x</entry>
 <entry>Perfect octave: c</entry>
 <entry>Major tenth: v</entry>
</row>
</tbody>
</tgroup>
</informaltable>
