A touch tracks object allows you to trigger MIDI regions or folders with single notes. This can be used to create a new arrangement in real time, ideal for live performances.
You cannot use touch tracks to trigger audio. In the following section, any references to regions mean folders and MIDI regions, not audio regions. Despite this limitation, you could conceivably load your audio regions (as files) into the EXS24 mkII, and trigger it with a touch tracks object.
Drag a MIDI region or folder from the Arrange area into the Environment.
Choose New > Touch Tracks from the Environment menu.
Assign the touch tracks object to an arrange track.
Place the touch tracks object anywhere in the MIDI signal path.
Here are some things to remember:
Only the touch tracks input has meaning—trigger notes must appear here. Although the object features an output triangle, it has no use, as events never appear here.
MIDI regions and folders triggered by touch tracks play exactly as they would from the Arrange window—they play back through the instruments assigned to their tracks.
Logic Pro must be open for touch tracks to work.
Double-clicking a touch tracks object opens the Touch Tracks window.
This window is similar to the Mapped Instrument window. The input note is selected via the keyboard on the left, and the output region assignment and parameters are set in the columns of the corresponding row. For details about mapped instruments, see Mapped Instrument Objects.
A vertical gray line means that the setting is the same as the line above. If you change a vertical gray line that is above another vertical gray line, the lower one changes to display its previous value. (It is no longer the same as the line above.)
Dragging a MIDI region or folder into the Environment automatically creates a touch tracks object. All notes (initially) trigger this region. Middle C plays the region or folder at its original pitch, and all other notes transpose it, relative to middle C.
In the Input Name column, you can see the input notes, and to the right, in the Region/Folder column, the names of the assigned regions or folders. On the vertical keyboard to the left, you can select individual notes or pitch ranges by dragging across several keys. If you then drag a MIDI region or folder from the Arrange window, it will only be assigned to the selected note (or note range).
Groups behave as they do in the Hyper Editor. When you trigger a region, any other (currently playing) region in the same group stops.
The Off setting means that the region is not assigned to any group.
When you drag a region to a key in the Touch Tracks window, that key triggers the region at its original pitch (without transposition). If you want to transpose the region, you can set the amount in the Transpos column.
If a key range is selected when you drag the region into the Touch Tracks window, incremental transpositions are set automatically for adjacent keys (within the key range).
When you create a touch tracks object by dragging a region into the Environment, C3 triggers the region at its normal pitch, and all other keys trigger it (transposed relative to C3).
In the Velocity column, you can set the sensitivity of regions to the velocity value of the trigger note: by 100% (very sensitive), 50% (somewhat sensitive), or off (not velocity-sensitive).
The Trigger column determines how region playback is handled:
This column allows you to quantize region start and stop. Free means no quantization. The Next 1/16, Next 1/4, or Next 1/1 settings start or stop the region at the next 1/16 or 1/4 note, or at the beginning of the next bar, when a trigger note is played.
This column allows you to assign a delay to the region start point. The delay is set on the right side of the column in ticks, or on the left side in note values.
You can use both Delay and Start to make regions start at any position in the measure. For example: Set Start to 1/1 and Delay to 480 ticks to commence playback at the second 8th note in the measure.