bro if u want to learn more bout this synth..go to MPH and find a magazine that called computer music..there a tons of thing that u can learn bout this synth..i learn to used synth from computer music..they even give free dvds with many sound, freeware etc..i used esi keycontrol 25, laptop, software, and a tons of plugin..im also new..need more study bout it..chow

Keyboard Synthesizer all falls under keyboard instruments be it a Digital Piano, Workstations, Midi Keyboard, etc. They're basically have different functions and feature cater for each purpose, while Music Workstations being the most powerful of all.

http://xahlee.org/UnixResource_dir/writ/piano_action1.html
http://xahlee.org/UnixResource_dir/writ/piano_action2.html

Nowadays, even a Synthesizer have full range digital piano functions, like the Yamaha S90ES, Roland's RD700SX, Roland's RD700GX, etc. These are Stage Piano + Synthesizer.

There's also the more powerful Music Workstation, like Roland's Fantom X8, etc.

To put it simple, it's simply a low end keyboard to a high end keyboard.

As for playing capability, of course, it's different in DETAILED manner, but the basic point is having to pickup and play, since it's keyboard instruments, if you're familiar with playing keyboard instrument, then you can start/pick-up easily since you're familiar and used to playing it.