+<h2>About Snapping</h2>
+<p>There are two ways to think about aligning material to a grid.
+ The first and most obvious one is where an object\'s position is clamped
+ to grid lines. In Ardour, this is called <dfn>absolute snap</dfn>
+ and is commonly used when working with sampled material where audio
+ begins exactly at the beginning of a file, note or region.</br>
+ The second, <dfn>relative snap</dfn>, is used when an object's position
+ relative to the grid lines is important. In music, this allows you to
+ move objects around without changing the "feel" (or timing) of a performance.</br>
+ Absolute snap is the default method of snapping in Ardour.</br>
+ While dragging objects you may switch from absolute to relative snap by
+ pressing the absolute snap modifier key(s).</br>
+ You may also disable snap entirely by using the snap modifier (see below).</br>
+ Note that in relative snap mode the reference point is taken to be the distance
+ to the nearest grid line.</br>
+ Note also that when an object lies exactly on a grid line, there will be no difference
+ between relative and absolute snap modes.</br>
+ The realtive snap and snap modifiers (along with other modifier keys) may be set in
+ <kbd class="menu">Edit > Preferences > User Interaction</kbd></br>
+ For common use patterns, it is recommended that you assign a unique key for
+ one snap modifier and two keys for the other in such a way that they share an otherwise unused key.
+ For example, you may choose the snap modifier to be the <kbd class="mod2"> </kbd> key and the
+ relative snap modifier to be the <kbd class="mod2"> </kbd> and <kbd class="mod4"> </kbd> keys.
+</p>.