tweak control playback text

[ardour-manual] / _manual / 25_tempo-meter / 01_tempo-and-meter.html

diff --git a/_manual/25_tempo-meter/01_tempo-and-meter.html b/_manual/25_tempo-meter/01_tempo-and-meter.html
index d5ed51523caabd1e537f0ae57949f311f82cfe04..f25b646740485785cfbf813d00fb68dbc817c172 100644 (file)
--- a/_manual/25_tempo-meter/01_tempo-and-meter.html
+++ b/_manual/25_tempo-meter/01_tempo-and-meter.html
@@ -11,7 +11,7 @@ menu_title: Tempo and Meter
 </p>
 <p class="note">When performing meter or tempo operations, it is advised that you show the BBT ruler (available by right-clicking an existing marker or ruler name),
   and ensure that the constraint modifier is set (in Preferences->User Interaction) so that no other modifiers share its key combination.<br>
-  The constraint modifier is the "Constrain drags using : " setting under the "When Beginning a Drag" heading. One viable setting is control-shift.
+  The constraint modifier is the "Constrain drags using : " setting under the "When Beginning a Drag" heading. One viable setting is <kbd class="mod1"></kbd><kbd class="mod3"></kbd>.
 </p>
 
 <h3>Tempo</h3>
@@ -43,16 +43,32 @@ Music locked tempo marks move their frame position as their neighbours are moved
 <br>
 <p>A tempo may be remped or constant.
 
-<ul><li>A constant tempo will keep the sesion 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>
+  <ul>
+    <li>A constant tempo will keep the sesion 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).
+      <br>
+  </li>
 
-<li>A ramped tempo increases its tempo over time so that when the next tempo section has arrived, the sesion tempo is the same as the second one.
-This is useful for matching the session tempo to music which has been recorded without click tracks or electronic clocks.
+    <li>A ramped tempo increases its tempo over time so that when the next tempo section has arrived, the sesion 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 you add a new tempo and adjust one of them that you will hear a ramp.
-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>
+      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>
+</p>
+<br>
+<p>
+  <img src="/images/constant-tempo.png" alt="A constant tempo displaying the tempo at the playhead in the audio clock">
+  <br>
+  A series of constant tempo markers. The tempo at the playhead position is the same as the previous tempo.
+</p>
+<br>
+<p>
+  <img src="/images/ramped-tempo.png" alt="A ramped tempo displaying the tempo at the playhead in the audio clock">
+  <br>
+  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.
 </p>
 <br>
 <p>To add a new tempo, use the primary modifier and click on the tempo line at the desired position.
@@ -81,7 +97,7 @@ If you need another bar, lock the meter to music again (right click->"Lock to Mu
 <br>
 <li>To change a meter, double click it. A dialog will appear.</li>
 <br>
-<li>To copy a meter, hold down control and drag it.</li>
+<li>To copy a meter, hold down <kbd class="mod1"></kbd> and drag it.</li>
 
 <h3>Techniques </h3>
 <p>As a general approach, the best way to control tempo ramps is to use them in pairs.
@@ -99,9 +115,9 @@ You will see this reflected in the tempo lines.. they won't quite match the drum
 We now locate the earliest position where the click doesn't match, and place a new tempo just before this.
 Two bars later, place another new tempo.
 </p>
-Now while dragging any beat <strong>after</strong> the second new tempo, watch the drum audio and tempo lines until they align.
-<p class="note">
-Notice what is happeneing here: the tempo previous to your mouse pointer is being changed so that the beat you grabbed
+<p>Now while dragging any beat <strong>after</strong> the second new tempo, watch the drum audio and tempo lines until they align.
+</p>
+<p class="note">Notice what is happeneing here: the tempo previous to your mouse pointer is being changed so that the beat you grabbed
 aligns with the pointer.
 Notice that the tempo lines previous to the changed one also move. This is because the previous tempo is ramping <strong>to</strong> the tempo you are changing.
 Look further to the left. The tempo lines in the first four bars do not move.