Displays the contents of your sequence horizontally as regions inside tracks. With the time-line tools and the context menus you can perform a wide variety of editing operations on the regions and their contents.

Sequencer view
Figure The sequencer view with tracks, regions and the sequencer grid.

  1. Track: Container of regions represented by horizontal lines aligned to each track name on the device and track list. Audiotool’s sequencer uses note tracks for notes, pattern tracks for patterns, audio tracks for samples and automation tracks for changes in controls’ state. In automation tracks, a light gray line shows the value used for the state of an automated control between regions.
  2. Region: Discrete block of note, pattern, audio or automation data that can be edited and reused in various ways. Its type always matches the type of track that contains it. By default, note regions are colored “Strawberry”, pattern regions “Sahara”, audio regions “Lemon” and automation regions “Bonbon”. Click a region to select it. Shift-click regions to add them to the selection. Double-click a region to open it an expose its contents or to close it. Drag selected regions to move them, Crtl-drag to copy them and Shift-Ctrl-drag them to create virtual copies. Drag the right or left border of a region to change its length. If snapping is active, the movement follows the current snapping unit. Note: pattern regions cannot be opened or virtual copies made of them.
  3. Virtual region: Region that was copied from another one by holding Ctrl-Shift. Virtual regions have a chamfered top right corner and their name in italics. They only reference the contents of another region. Editing their content changes it for all related regions. Virtual regions can nevertheless have their own loop points, content shift, length and name.
  4. Open region: Region that has been expanded by double-clicking it so that its contents can be viewed and edited. Drag the bottom border of the content area up and down to expand it or contract it. Open audio and automation regions show a waveform or interpolated key-frames respectively. Open note region show notes as a piano roll representing pitch and length, as well as velocities as dots under each note. Velocities are indicated by both the height of the dot and the color intensity of notes and dots. Point a key-frame or note to see its value or note name and position. Point a velocity dot to see the name of the note it belongs to and the velocity value. Drag the border between notes and velocities up and down to expand or contract the velocities area.
  5. Loop markers: They appear in open regions and define a segment of content that will be looped for the duration of the region. Drag them to set their position. If snapping is active, the movement follows the current snapping unit.
  6. Content shift: This bar between the loop markers defines the position of the region’s content within itself. Drag this bar to shift the region’s content forwards or backwards in time without affecting the position of the region or its loop markers. If snapping is active, the shift follows the current snapping unit.
  7. Sequencer grid: Vertical lines that divide the sequencer view in bars with thick lines and snapping units with thin ones. Some lines might be omitted if you zoom out the sequencer view too wide.
  8. Open note track grid: This grid is drawn in open note tracks and adds lines to represent pitches. Thicker lines are drawn under each C and F note in every octave.


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