-<dt id="mute">m</dt>
-<dd>Mute — click to mute the bus. Right-click to display a menu which dictates what particular parts of the bus should be muted.</dd>
-<dt id="solo">s</dt>
-<dd>Solo — solo the bus. The behaviour of the solo system is described in detail in the section called “Mute and solo”.</dd>
-<dt id="automation">a</dt>
-<dd>Automation — click to open a menu related to automation for the bus. For details see <a href="/automation/">Automation</a>.</dd>
-<dt id="group">g</dt>
-<dd>Group — click to open a menu related to the bus group. For details see <a href="/working-with-tracks/track-and-bus-groups/">Track and bus groups</a>. </dd>
+ <dt id="mute">m</dt>
+ <dd><dfn>Mute</dfn> — click to mute the bus. Right-click to display
+ a menu which dictates what particular parts of the bus should be muted.</dd>
+ <dt id="solo">s</dt>
+ <dd><dfn>Solo</dfn> — solo the bus. The behaviour of the solo system
+ is described in detail in the section <a
+ href="/mixing/muting-and-soloing/">Muting and Soloing</a>.</dd>
+ <dt id="automation">a</dt>
+ <dd><dfn>Automation</dfn> — opens the automation menu for the
+ bus. For details see <a href="/automation/">Automation</a>.</dd>
+ <dt id="group">g</dt>
+ <dd><dfn>Group</dfn> — lets you assign the bus to an existing or a
+ new group. For details see <a href="/working-with-tracks/track-and-bus-groups/">Track and bus groups</a>. </dd>