1. Select the keyboard icon under the Track section of the Main screen.
2. Go to Menu > Browse > Places tab and select the hard drive containing your samples.
3. Select a sample and tap the onscreen Load button. Repeat this for each sample you wish to use.
4. Go to Menu > Sounds > Edit Instrument > Samples tab.
5. In the Sample field, select a sample from the list you loaded in step 2.
Now, when you press the keys on your MIDI keyboard, the assigned sample will play back at different pitches, corresponding to the key you press.