+
+<ul>
+ <li>A constant tempo will keep the session tempo constant until the next tempo
+ section, at which time it will jump instantly to the next tempo. These are
+ mostly useful abrupt changes, and is the way in which traditional DAWs deal
+ with tempo changes (abrupt jumps in tempo).</li>
+ <li>A ramped tempo increases its tempo over time so that when the next tempo
+ section has arrived, the session tempo is the same as the second one. This is
+ useful for matching the session tempo to music which has been recorded
+ without a metronome. Ramps may also be used as a compositional tool, but more
+ on this later. Note that a ramp requires two points—a start and an end
+ tempo. The first tempo in a new session is ramped, but appears to be constant
+ as it has no tempo to ramp to. It is only when a new tempo is added and one
+ of them is adjusted that a ramp will be heard. The same applies to the last
+ tempo in the session—it will always appear to be constant until a new
+ last tempo is added and changed.</li>
+</ul>
+
+<figure>
+ <img src="/images/constant-tempo.png" alt="A constant tempo displaying the tempo at the playhead in the audio clock">
+ <figcaption>
+ A series of constant tempo markers. The tempo at the playhead position is the same as the previous tempo.
+ </figcaption>
+</figure>
+
+<figure>
+ <img src="/images/ramped-tempo.png" alt="A ramped tempo displaying the tempo at the playhead in the audio clock">
+ <figcaption>
+ A ramped tempo marker. The tempo at the playhead position is approaching the second tempo. Because the playhead is equidistant (in beats) between the two markers, the tempo at the playhead is the average of the two.
+ </figcaption>
+</figure>
+