Gtak5 for Kontakt5 is out now! Gtak (for Kontakt3) comes with a free upgrade to Gtak4 and Gtak5!

With Gtak, MIDI guitar users get easy access to Native Instruments Kontakt3's sonic arsenal of 33 GB of world-class samples and 1000 instruments.

  • Gtak runs inside Kontakt instruments (technically a KSP script), making them work seamlessly with Guitar to MIDI converters.
  • Comes with versions of all 1000 instruments from Kontakt's standard library tweaked for instant use.
  • No need to make settings or load one instrument per string. Everything just works.

To use Gtak you must have Kontakt3 from Native Instruments and a Guitar to MIDI converter, for instance the AXON AX100 or AX50 or Roland GR/GI units.

Gtak screenshot - String splitGtak screenshot - One backing and one solo instrument

Before purchasing you should read the License, it tells you what you can and can not do with Gtak. For instance you can not share patches that contain Gtak except with other registered Gtak users through this site.

Gtak is supplied as a download only. The file size is about 35 megabytes.

You must have Kontakt3 and its instrument library installed to use Gtak.

Grand Piano with Gtak Load an instrument and play, no need to load six instances to cope with pitchbend for each string. Gtak detects the pitchbend information that the Guitar to MIDI converter generates when you play bends, hammer ons, pull offs and slides and applies it to the correct notes.
  • Here's a quick overview video of Gtak, why it's needed and some of the things it can do.

  • Here's how Gtak works with a MIDI pedal board to let you switch between instruments (in this case 17 different instruments) without you having to take your hands off your guitar.

Gtak Script Features

Main features of the Gtak Script:

  • No need to load 6 instances of each instrument! Load up a single instrument and play - bends, slides and hammers all work.
  • Fill Kontakt's rack with up to 64 instruments and play as many as you like.
  • For each instrument:
    • select which strings, fret range and picking position (Axon only) it responds to with a few mouse clicks
    • select how pitch bend is handled: unquantised, quantised, automatic or retrigger.
    • transpose individual strings or the whole instrument
    • assign a foot pedal to control hold, sustain or muting
  • All settings are saved in your song (plugin version) or Kontakt Multi for instant recall.
  • No need to switch settings on your Guitar to MIDI converter
  • Smart Controller routing can route controllers to whichever instrument played last. For instance, the wheel controller can automatically control the volume of whatever sound you are playing.
  • It would be great to see this kind of provision built into all software instruments ... but in the meantime GTAK offers a lifeline to Kontakt-based MIDI guitar users. Given its low cost ... anyone who plays MIDI guitar and who owns Kontakt 3 would do well to invest.

    Even Harmonic’s GTAK is a clever Kontakt 3 KSP script application which turns Kontakt 3 and its built-in library a great, expressive sound library for anyone with a MIDI guitar system.


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  • "if you own a MIDI guitar and you use Kontakt 3, or if you’re a MIDI guitarist looking for a software sampler, you’d be crazy to overlook this very fortuitous pairing. Gtak and Kontakt 3 are an unbeatable combination"

    Value (1 through 5): 5


The demo version of Gtak works with the demo version of Kontakt3, so anyone with a Guitar to MIDI converter, computer and soundcard can try the system. We do not have a Gtak5 or Gtak4 demo, but the Gtak demo covers almost all of Gtak5 and Gtak4's features.

The demo will also work in the full versions of either Kontatk3, 4 or 5 (although you may get reports of missing impulse response files in Kontakt4 or 5).

Installation is as simple as unzipping the file, and then placing the Gtak folder in your Kontakt library directory (see the Gtak manual for more details). Then, in Kontakt, just load the Gtak multi followed by the instruments you want to try.

In Kontakt5 you will get messages about missing sample files, this is because NI have moved all the samples. When the message comes up:

  • check the box near the bottom for "Allow alternative file types"
  • click "Browse for folder" then select the "Samples" folder under "Kontakt Factory Library"
  • the samples should then all be found
  • you can then save the instrument with the new sample paths

On some instruments there will be a few files still not found, these don't matter, so just click "Skip Missing" if this happens.

The main demo limitations are:

  • Only 7 instruments - the same 7 that come with the Kontakt3 demo
  • Instruments only run for 30 minutes
  • State is not saved
  • There is no config panel, so you can not change any of the things that are changed there (tuning, transposing, midi channels, automation modes etc)

The 7 instruments are (we didn't pick them, these are the ones that come with the Kontakt3 demo!):

  • Jazz Basic: Organ
  • Uilleann Pipes: NI set the drones to latch which can be confusing, you can turn the latching off in the Instrument panel.
  • Green Bag - Urban Beats kit: patterns mapped to low E string, effects presets mapped to A string
  • Kora
  • Harpsichord
  • 808 Kit: with drum computer patterns mapped to low E string
  • Cerulean: Synth Pad.

Have fun!