For an especially bad-ass implementation of OSC, check out the SuperCollider project at https://supercollider.github.io/. SuperCollider is a programming language for audio synthesis/analysis, and algorithmic music composition. It works using a client-server paradigm, and they communicate with each other via OSC.

Shameless plug time! I've been using SuperCollider to design a machine-learning solo electroacoustic music performance platform, called Sonic Multiplicities. You can hear it at http://www.sonicmultiplicities.net/.