Track Selection explanation
A full sized piano is 88 keys, a little over 7 octaves. That is the range of possible notes that Piano Wizard can deal with. Of course, your keyboard may be smaller, and may play only 4 of those 7 octaves, and each song and song part (track) occupies a different part of the total possible range. SO, we have a very easy, visual way for you to align the track (song part) you choose, and the range of your keyboard, so they overlap. That is all explained in the HELP/DEMO section in the opening splash screen, under Tracks, in fact there are over a dozen audio-visual demos there to teach you different functions of the game.
It is also accessible WITHIN the game, by clicking on HELP in Advanced Mode, and following the sequence of slides on the Tracks section. To summarize those help files, On the 88 key virtual piano at the bottom of the Tracks screen, when you select different tracks above to Play, it will highlight in Blue the range of notes for that track or combination of tracks. This is very useful for you to adjust your keyboard to play all or most of the notes in that track.
Your keyboard's range will be highlighted with Red brackets (the size of the red brackets, and the view of the virtual keyboard are selected and adjusted in the Keyboard section of Advanced mode, or during initial Set up.) There are 2 arrow buttons on the lower left side of the Tracks menu, that adjust the Red Brackets, your keyboard range, to overlap with the (blue, or green if overlapped) range of that track. Note that the range of the keyboard must move by octaves, (your keyboard is a fixed size) and if you download a new song, it may not all fit in 4 octaves perfectly.
If you choose a bigger or smaller virtual (onscreen) keyboard view in the Keyboard section, it will always default to the smaller of the two, the virtual or the actual, in the Tracks range section, so you can see exactly what is your playable range. The MIDI files included with the game should all fit on a 3 octave keyboard. For files found and downloaded online, these MIDI files were created by thousands of different people over the last 20 years, and so they are a bit like a box of chocolates in quality and suitability. That variability is why we gave you the tools in Tracks menu, so you can still somehow play the most crazy files you find. Have fun!