Dad was a hacker too. It's kind of like.. 1982 8-bit music.

---------- Forwarded message ----------
From: Jim Vyduna
Subject: YouTube - HP-3314A Plays the Hallelujah Chorus in 4-part harmony
Ron Riedel's and my handiwork, circa 1982.  Demonstration of then state-of-the art Arbitrary Analog Waveform Generation invented by yours truly.  This was an unauthorized late project clandestine activity that resulted in uncovering a number of firmware bugs prior to code release.  We demonstrated it to management the day after we shipped the code for inclusion in the ROMs.   They would have never authorized the activity if they knew about it ahead of time.

(It's a touch long, but listening to the beginning and end gives a good picture)