Cakewalk created this video to offer a look at the synth capabilities of their SONAR V-Studio 700R interface.
The Fantom VS Synthesizer was designed by Roland and is built into the SONAR V-Studio 700R interface. The Fantom VS includes 1400 patches suited for all kinds of productions. it also accepts Roland's ARX expansion cards for piano, drums, brass and more.
Details on the Sonar V-Studio 700R are available at the Cakewalk site.