Basically, you would have every string tuned to about the same note, except that each higher string would be 16 cents sharper. So if you were to ascend each string across one fret you would be slowly sharpening one note, with the next fret being the beginning of a new note.
For an example each string will be tuned to a variable of G. Each row represents a string. A verticle line "|" represents a fret, and upwards arrow "^" means that the note is 16 cents sharper than the string below it.
G |Ab |A |Bb |B
And so on.
So what's happening, is you're dividing every semi-tone into 5 smaller intervals each. It's almost a reversed way of playing bass, so playing up a string over one fret is a smaller interval than playing up a fret on one string.
These are also notes that you can achieve naturally on the fretless. This is just an interesting experiment because it turns the bass on it's head, and completely changes the way that it has to be approached.