I like playing the piano because the staves correspond more or less directly to the physical layout of the keyboard. If you flip a score 90 degrees, you end up with this, with the notes laid out over the keys. Compared to almost all other instruments pianos are ideally suited to sheet music. Manuscript notation is also (necessarily) very information dense.

It's an interesting approach; there are apps that will do something similar to this. They're very much like guitar hero. Some of the newer electric pianos will even illuminate the keys in the correct order.

I think one of the reasons that guitarists use tablature is that using sheet music notation for the guitar is more difficult to learn (at least to me). I've struggled with the guitar because I haven't put in the time to get my head around translating between manuscript and which strings/frets I need to be using. Violinists don't seem to have the same problem, but perhaps that's because most violinists are classically trained whereas most guitarists aren't?