Max Patch #1: Playback & Synthesis

This is what I got from combining Peter's RM-AM and Additive patches with my own playback of a subway field recording. I modified the Additive patch by taking just half of it and using rect and tri oscillators instead of a cycle, and for the RM-AM patch I put a phasor in as the carrier signal, and made a line object with a list to make the note a short note with an envelope.
The result on one pass sounded like this: