I know that the main BulkyMIDI-32 has a fancy display that shows instruments and so on, the original Roland MT-32 also did something similar back when they were still sold in music shops. However, I wanted an excuse to add a ton of LEDs to the project while having a bit of fun with older logic chips. Because, who doesn't want more blinking lights? Noone, that's who. The other channel monitor board is a bit more interesting in that it does everything with basic logic chips, but I wanted one more variant to play around - this one uses an Arduino instead.