You can get two samples to play together by assigning them to the same key. We'll start with a single-sampled instrument in this example and add another sound to it.
To create a layered instrument
The NN-XT can switch or fade between two samples with different velocity ranges.
To velocity-switch between samples
You can also use velocity to crossfade between samples in a layered patchone sample fades in at a certain velocity as the other fades out.
To crossfade between two samples