I built the ardutouch and it was a fun experience: https://notes.atomutek.org/diy-music-synth.html

I recommend it for a first hardware project.

I wrote about something similar: is power metal really about dragons? [0]

All the analysis is backed by stats and NLP :)

[0] https://notes.atomutek.org/power-metal-and-dragons.html

This is excellent. I love the classification of bands by the words most important to them, and the subsequent clustering by subject.

I have done a similar analysis of the Lone Wolf series [1].

[1] https://notes.atomutek.org/gamebooks-and-graph-theory.html