Appassionata Strings II Upgrade to Full Library from the Vienna Symphonic Library provides additional articulations and samples for the Appassionata Strings II virtual instrument Standard Library (required). The complete sample based instrument provides "passionate" string ensemble played in the "con sordino" style. The sounds are lush and cinematic in scope and perfectly integrate into a wide variety of musical styles.

From pop and rock to symphonic arrangements, emotional ballads to films, the four string sections offer various sustains and legato performances, with different intensities of vibrato. The virtual instrument also includes articulations such as accented interval notes, spiccatos, staccatos, various Repetition Performances, trills, and much more.

The Vienna Instruments user interface is clearly arranged and includes pre-configured patches for immediate playability with no learning curve. The interface uses a powerful proprietary streaming audio engine that can load up to 3,456 articulations (patches) on one MIDI channel.

Load times are extremely low and sixty-four stereo voices per instance can stream from the hard disc. A RAM optimizing utility clears unused samples out of RAM. Users can easily create their own instruments, using "drag and drop" functionality, and the instrument provides the ability for velocity crossfades and release control to be switched on or off in real time.