The Pro Tools Instrument Expansion Pack includes the following five virtual instruments:

Strike — The Ultimate Virtual Drummer
Strike is an instrument plug-in that makes it easy to create professional drum performances with a human feel. You can pick an acoustic or electric kit, or build a kit from your own samples/sounds.

The latest Strike 1.5 instrument includes new features and more content (30 GB total!) to provide you with even more beat versatility. Use your own sounds with new WAV and AIFF sample import, gain more efficiency with the enhanced Style editor, discover over 10 GB of new drum kits and percussion elements, explore 55 new styles (for a total of 205 styles), and more.

Structure — Professional Sampler Workstation
Structure allows you to freely create, sculpt, edit, and refine nearly any sound imaginable, from simple acoustic instruments to highly complex soundscapes.

The latest Structure 1.1 sampler comes with 17.5 GB of high-quality content, including 5 GB of new orchestral sounds, Nashville Signature drum kits, and a custom grand piano. Create realistic orchestral performances with special new MIDI control features, take advantage of new Kontakt 3 and Giga sample format support, and gain new EXS modulation matrix support.

Transfuser — The Ultimate Groove Creator
Transfuser is an award-winning real-time loop, phrase, and groove creator that lets you easily create, manipulate, and perform music on the fly. It comes with 4 GB of high-quality drum sounds and loops to get your started, or toss in your own loop library content.

The latest Transfuser 1.3 workstation opens up even more sonic possibilities than ever before, adding a new bass module inspired by a classic bass line synth, 1.6 GB of new audio content for a total of nearly 4 GB of included loops and sounds, and a 6-band parametric EQ that lets you accurately perform frequency surgery on your sounds.

Velvet — Vintage Electric Pianos
Whether you\'re inspired by \'60s soul, \'70s classic rock, or \'80s \"glassy\" sounds, Velvet delivers stunningly realistic emulations of your favorite electric pianos, from vintage classics to a massively popular digital synth.

Hybrid — High-definition Synthesizer
For sound buffs who love to get their hands dirty, Hybrid combines the warmth of classic analog waveforms with digital wavetables, enabling you to re-create sounds you remember, or create something no one\'s heard before.