
Designed by Andrew Aversa
An Impact Soundworks Product
Please visit www.impactsoundworks.com for more great sounds!
Overview
Tetralogy is a comprehensive set of patches for the Zebra 2 synthesizer by u-he. It includes a wide range
of sounds incorporating wavetable, FM, RM, and VA synthesis, making thorough use of Zebra 2's
capabilities. Tetralogy is intended as a base of solid, “bread & butter” sounds usable in many styles and
genres, providing composers and producers with lots of inspiration and practical tools for their tracks.
Tetralogy was originally released in 2007 when Zebra 2 first launched, and has been expanded and
updated over time. This 2015 release includes 23 new patches and includes all material from all previous
versions!
This patch library contains a total of 357 patches organized as follows:
26 ANALOGY POLY: sounds emulating the tones of classic subtractive analog synths
11 ARPEGGIOS & SEQUENCES: rhythmic, tempo-synced sounds
46 BASSES: all sorts of low-end centric sounds, from simple to complex
12 DIGITAL POLY: more complex and glassy timbres using digital synthesis techniques
19 DISTORTED: sounds making liberal use of saturation, overdrive, and crunchiness

13 FX & PERC: various sound effects and drum/percussion emulations
17 KEYS: versatile presets that lend themselves well to polyphonic keyboard parts
54 LEADS: soaring, cutting sounds that are best used monophonically in front a of a mix
23 NEWSTUFF: bonus sounds exclusive to the 2015 release of Tetralogy
9 ORGANS: emulations of various classic, vintage, and modern organs
30 PADS: lovely and atmospheric sounds ideal for chords and background instrumentation
13 PLUCKED: perfect for creating your own sequences and rhythmic accompani
19 SWEEPS & GATES: sounds that morph and evolve over time
65 XY VARIATION: unique takes on other sounds in the library using the XY controllers
We hope you will find enjoy Tetralogy and that it will find a place in lots of your music productions –
thank you for your purchase!
- The Impact Soundworks Team
Setup & Usage
First, move the unzipped bank of presets (the entire Impact Soundworks Tetralogy folder) to the Zebra 2
presets folder on your computer. On Windows, this is (by default):
/Program Files/Vstplugins/u-he/Zebra2.data/Presets/Zebra2/
On Mac OSX, it is likely:
/Library/Audio/Presets/u-he/Zebra 2/
Once you have done this, restart Zebra 2 in your DAW of choice.
You should see Impact Soundworks Tetralogy in the patch browser.
License Agreement
The following license is granted non-exclusively to all purchasers of our products. This version (updated
December 4, 2014) supersedes any prior printed or digital versions of our license.
Overview
All sound recordings, performances, scripting and/or code contained in this product is the intellectual
property of Impact Soundworks unless otherwise noted, and remain the property of Impact Soundworks
after the product is purchased. When purchasing an Impact Soundworks product, you are purchasing a
non-exclusive license to use, edit, perform, or otherwise utilize these recordings, performances, scripting
and/or code for commercial and non-commercial purposes as defined below.
Authorized Users
Depending on the type of customer and usage scenario, authorized users of this license will vary. ALL
purchases fall into category A or B.
A. Individual Purchase
This license is extended to customers who are purchasing as the primary user of the product, OR
are purchasing on the behalf of another primary user (i.e. as a gift).
The licensee (primary user) MAY install the product on as many computer systems as he or she

has has access to. However, ONLY the licensee may use the product. No other users are
authorized.
B. Corporate, Academic, Institutional Purchase
This license is extended to customers who are purchasing for a multi-user setting, such as a
shared studio, networked workstation, computer lab, etc. In this case, the licensee is the
institution and not any one user. In contrast with individual purchases, an institutional license
applies to ONE computer / workstation. All users of that workstation who belong to the
purchasing institution (licensee) shall be considered authorized users.
However, at no point may multiple authorized users access one license simultaneously. Multiple
licenses must be purchased if the product is to be used by multiple users simultaneously.
Scope of License
The licensee is entitled to the use and unlimited editing of the product within the scope of music
production, performance, recording, and composition. This includes both non-commercial and
commercial usage of all types, including, but not limited to, film scores, television scores, music libraries,
video game soundtracks, digital and physical music releases, albums, compilations, etc. Exceptions to
this scope are listed below.
The licensee MAY NOT use the product in the production of any other sample library or virtual
instrument products.
The licensee MAY NOT sell individual sounds from a product in any context.
For clarity: The licensee MAY use sounds from the product to create individual sound effects (SFX) for
use in film, TV, advertising, and video games. However, the licensee cannot sell these sounds individually
via marketplace, stock music/stock audio site, etc.
Ownership, Resale, and Transfer
Redistributing, reselling, electronically transmitting, uploading, sharing, or renting the product in any
way, shape, or form is prohibited by law. The licensee may create a physical backup copy of any digitally
purchased and downloaded product. This backup copy is subject to the same limitations as the original
copy of the product, and may not be transferred to any other individual for any reason.
Copyright © 2015 Impact Soundworks, LLC. All Rights Reserved.