You can experiment with different instruments and octaves, but the fun part is in the pitch bend box. The Octave Up & Down buttons span a range of 11 octaves. As there are more tones that keys on a QWERTY keyboard, you may navigate left and right using the appropriate buttons, allowing you to use the same physical keys. The virtual keys are operated using the first row of letters for the tones and the number row for the semi-tones on your regular keyboard. The top table contains virtual instruments that can be played using the virtual keyboard at the bottom.
This one is the easiest to understand and play. You first get greeted by the PC Keyboard 1 window. Newbie meaning a person who doesn't already have his own MIDI keyboard, but knows everything about musical theory. One Man band appears to be developed also for the complete newbie. Considering that my topics of interest run parallel to the musical realm, it's only normal for me to be overwhelmed, right? So don't be mad when I describe One Man Band as the clueless fool that I am. I cannot but repeat the first sentence found in the help file: ' One Man Band is a combination of a virtual arranger keyboard, a style based sequencer/arranger and a style editor.' I couldn't have said it better myself. Trying to explain what it does is a bit hard though. Oh, I had a bit of fun playing with this app.
