Issue with NRT rendering of patterns

Hello, I'm relatively new to SuperCollider & having some difficulty setting
up non-real time score & audio rendering of patterns.

My primary problem, I think, is in figuring out how to load my synthdef and
audio buffer onto the NRT server. I am attaching 'nrt_test.scd', which
presents two examples.

Example 1: a working example with default server playback. A sample buffer
is loaded, a granular synthdef is loaded, and a pattern performs the
synthdef.

Example 2: a non-working example of converting this to NRT. Basically, it
produces an empty audio file. I am guessing this is because my synthdef
and/or audio buffer is not correctly called in the NRT server.

Could anyone offer any pointers to me on resolving my example #2?
Thank you for looking at my issue!