MIDI file parsing - Javascript help

I'm trying to get around some of the clunkiness in using Max's built in objects to read in MIDI files (detonate, filein, seq, etc...). Specifically, I'd like an easier way to read the actual tick counts for the delta time and duration times for each note (rather than msec which detonate outputs), as well as the tempo.

I started to explore using some existing Javascript libraries to do this, but sadly, my Javascript skills are not great, especially in Max. V8, Node.js, etc... are all pretty new for me. I came across this, https://cycling74.com/projects/midi-parsing-using-javascript-in-max , which looked promising, but no accompanying help file to walk through its usage.

I also see midi-parser-js as a Node NPM project which looks even better, and I can load it into a node.script object in Max, but then don't know how to use it from there: https://www.npmjs.com/package/midi-parser-js

There's also midi-file, another NPM project, but again, just don't know what to do once loaded https://www.npmjs.com/package/midi-file

Any help incredibly appreciated!