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Setting up the KeyTriggers, or the TCA1 Trigger-Pads Option
The TCA-1 (TriggerCapAssembly-1) is an optional set of Expression Pads that
are added to the Ztar top surface in place of the standard hex pickup cover. The
TCA-1 is comprised of six narrow rubber pads resting in line with the strings on
the fingerboard and the StringTriggers for the picking hand. These six Pads may
be programmed to a variety of MIDI event such as Notes, chords, Sequences,
Loops, Program changes, EFX level changes, and Continuous Control
messages. These pads may also be used to Trigger notes fretted on the
fingerboar
d.
The KeyTriggers and Trigger Pads ("TPads") on the TCA1 may be set to STRUM
mode to fire their associated strings on the fingerboard as a guitar-like right-hand
technique.
The TCA-1 pads are referred to as "TriggerPads" or "TPads" in the menu system.
As a default they are programmed to a set of Drum notes on MIDI Channel 10.
With a little practice it's easy to fingerpick a drum pattern on the TriggerPads.
The settings for the TriggerPads can be easily changed to accomplish a variety
of MIDI functions. To make these settings go to the SENSORS screen in the
menu system and tap one of the TPads. You should see the screen jump to an
edit-screen for that TPad. Refer to the discussion regarding the SENSORS menu
for details about making the settings.
In general you will be setting three things:
1) the PlayFunction shown at the top of the SENSORS screen shows
BASIC, ALL, SEQUENTIAL, CONTINUOUS-CONTROL, ETC. This sets
what type of messages are sent and in what sequence.
2) The EVENTS screen shows the settings for up to 8 events such as Notes,
CC changes, Program Changes, and more. By combining different Events
with different PlayFunctions you can achieve a huge variety of
performance techniques.
3) The TIMING screen is set to
a. TOUCH if the duration or the Events (notes) is simply as long as
the Pad is held down,
b. TIMED when the Events' duration is set in terms of milliseconds or
MIDI clocks (governed by the MIDI clock source such as the
internal metronome or external clock) or,
c. LATCHED which plays the Events and holds them until you hit the
Pad again.

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Summary of Contents for Starr Labs Ztar

  • Page 1 The TCA-1 (TriggerCapAssembly-1) is an optional set of Expression Pads that are added to the Ztar top surface in place of the standard hex pickup cover. The TCA-1 is comprised of six narrow rubber pads resting in line with the strings on the fingerboard and the StringTriggers for the picking hand.
  • Page 2 The following settings are made for each TriggerPad in the Sensor menus. Pressing the Tpad triggers the frets, and releasing the Tpad mutes the notes even if you’re holding the frets: In the Sensor>Timing screen set the HIT-MODE :TOUCH. In the Fretboard>Scan-Mode screen, set Sustain-Mode to OFF. When Sustain-Mode is dis-abled and Triggers are ON, fingerboard notes will only sound when the KeyTriggers are held down, much like the playing of a piano keyboard.
  • Page 3 Regarding the sensitivity of the String assembly Adjustments are made using the six trimpots located inside the guitar, which are accessible through the slot in the rear cover plate. Please be careful when making adjustments not to drop screwdrivers or bits of metal into the electronics. The power is on! Also, these trimpots turn less than one full rotation.
  • Page 4 Pull the string snug with a small pliers and tighten the rear screw. Tighten the front screw to add tension to the string. When you clip the string you may wish to leave a little string length to grab on to in case you need to remove or re-tension the string.
  • Page 5 I’ve also discovered that many people don’t spend much time or are reluctant to spend time setting up their instruments. Sadly, the Ztar is a ‘tech’ device with a computer inside and a bunch of electronics and sensors and software. It’s not a guitar with vibrating strings so instead we have to use our hardware and software to emulate everything in your guitar technique to generate a performance.
  • Page 6 Again, it’s important to try to set up the instrument to your touch and it’s best not to assume that if it’s not responding correctly now that it never will. Think of it like adjusting the action on a guitar neck. String trigger setup: String Tension, Trimpot gain, response curves, hammer-ons, hammer-threshold.
  • Page 7 Regarding Muting notes When using the actual String Triggers on the Z-tar, notes are muted by placing a finger on the appropriate String trigger while touching the back of the neck. In the Strumming-mode fretted notes will be muted when you release the frets. Sustain-mode, set in the FRETBOARD>SCAN-MODE menu, will allow strummed notes to ring even after the frets were released.
  • Page 8 Strum-mode. Then the Fretboard responds to both strumming and tapping! Trigger sensitivity: You can use the 6 trimpots at the rear of the Ztar to adjust the individual String- Trigger Gain. Also, you can assign a separate response curve to each trigger in the SENSOR/ OUTPUT menu,(though you will probably set them all to the same curve).
  • Page 9 Set the Sensitivity for the PADS, POTS and other SENSORS Go the RESPONSE menu. Tap the Pad you want to adjust and the screen should show that Pad’s values. If not go the second RESPONSE screen and turn on CHASE. 1) In the first RESPONSE screen you can adjust the GAIN setting.