this is a Spectrasonics CD, it costs 500$ and doesn't come in form of a song, it is in the form of seperate notes you can load into a sampler. Once the samples loaded, you can you use your external keyboard (triton or whatever) to play those notes. Don't get confused here, the sampler is not necessarily built in your synth or workstation, you can use a software sampler on your computer along with you external workstation.
take a look at the cd demo here:
http://www.ilio.com/spectrasonics/sy...ces/index.html