I'm going to drift off topic today and instead show you something interesting I did with some musical instruments. They're not computers, but one of them is definitely retro!
Basically tonight was going to be the night that the local pub has it's monthly acoustic music session, which I tend to go along to with my accordion. For some reason or other it was cancelled tonight so I was left twiddling my thumbs. I was all geared up to play some kind of instrument so I decided to give my 1970's Baleani electric organ a whirl! It has 2 manuals (keyboards) but I thought a third would be good so I dug out my old Yamaha keyboard and "attached" it to the top of the organ. Result - a three manual organ... sort of. It works well though, the keyboard has a seperate speaker to the organ but it can be turned up to match the volume. The only problem is that they are not quite in tune with each other, which can give a slightly wackey effect.
Here's a photo: