I tried to load and run the program that, when executed, plays Fool on the Hill and Daisy via the AM radio. I must have made a mistake because, after painfully loading the program via the switches, it promptly ran amok and wiped everything out in memory. I think I forgot to press reset to get back to memory location 0000 so the program ran whatever was in memory at whatever location was being examined at the time I switched the computer to run
Now I know the value of the protect circuit!
Well, I wanted to hear those songs so I reloaded the programs and triple checked (since I can't protect my memory). And they came through loud and clear.
So, now I've heard the music. It is much better than I had anticipated. Rather impressive. I actually heard a mistake in the music notes. I was able to read the code as the music played and find the place where I had entered some bad data and correct the entries. Cool.
Now I need to so something fun, like loading basic and hooking a terminal up and playing star trek.