Cakewalk released Rapture Session Synthesizer, the session edition of the full Rapture Pro Synthesizer. Rapture Session is for free for all Rapture Pro Synthesizer
Features of Cakewalk Rapture Session
A sleek, simple interface powered by the premium sounds of Rapture Pro, expandable with our ever-growing list of sound packs.
Rapture Session includes 11 instrument types picked from Rapture Pro, chock-full of presets that can be easily mapped to your MIDI controller for amazing performance possibilities.
Handpicked Sound Library
Windows: VST2, VST3 and Standalone Edition, AAX
Windows XP and Vista aren’t supported due of the Cakewalk Command Center
MAC: AU, VST3 and AAX
More informations here