Quantum Leap Voices of Passion from EastWest is a virtual instrument featuring five female vocalists from five countries, performing vocal phrases that can be best described as ethereal, passionate, flowing, mysterious, wailing, and whispering.

Voices of Passion is essential for film, TV, and game composers who wish to create music with the above attributes, along with writers of ambient or new age music. The instrument utilizes the dedicated Opus playback engine, which provides an easy searchable browser and the ability for users to customize the sounds.