Meh, I dislike the word art itself. It's too loaded, and too vague, and yet sometimes too limiting.... Everyone has their own definition for it, and they all assume they are talking about the same thing.... I'd rather use "creative work", which is much more wide in scope: it just specifies "the creation of something", and thus, I think it is better for my world-view in which there is no distinction between "practical things" and "art"; everything, life itself is an act of constant creation.
>>> has extensive amounts of sketchbooks, does photography, likes graphic design, and obsesses about industrial design and architecture. Also counts fashion as a guilty pleasure.
There is, in my opinion, two kinds of "creative work". One is creative work as an emotional vent, which is quite common. (It emerges from the emotions of the artist, and these emotions are sometimes readable and contagious to the observer). But there is also creative work as an intellectual device, which is much rarer (One can produce creative work, without having intense emotions in its origins. It is for the mind, borne out of thoughts, in an attempt to reinterpret them in some media to understand them better, or to provoke thoughts in others, instead of feelings). People can do and enjoy both of these kinds of creative work.. and it is important to realize which of these things artist was working for in order to understand the artwork.
I think that INTPs, having inferior Fe, will usually have strong attachments to one sort of "creative work" in an emotional manner; and yet, having primary Ti, will also have a strong intellectual "creative work" that they indulge in. Or maybe both congnitive functions tackle the same type of creative work simultaneously, with the strength of developed thinking and the rawness of underdeveloped feeling. So IMO not only can INTPs be "arts" people... but they can be damn good at it! Almost everybody here has confessed about practicing some sort of "art", be it visual, musical, or written.
For example, my drawings are intellectual, rarely are they emotional. They are visual thoughts, attempts to capture ideas about the physical world, to dissect them, selectively, or to diagrammatize a complex abstract concept, or as a step for understanding the full complexity of an object which does not exist yet. If people look at them in search for emotion, most would find them completely lacking... but they are, nevertheless, creative works.
On the other hand, my photography is much more emotional. It surges out of my desire to capture moments, scenes, places and the emotional associations they bring about my own life, knitting a web of feelings frozen into pictures. A lot of them might not be understood by most people, or at least not understood in the same interpretation as I have as creator; they're very personal. Still, through similar experiences, others might find a more common emotional ground.
It is important to note here that the distinction of intellectual vs emotional has nothing do with technical skill. It has to do with the source and intent of the creative impulse.
Of course, some people like to define art strictly as that which is emotional and not intellectual, so they might find my concepts of "creative work" as invalid...
). I sketch, paint, sculpt, carve and occasionally write. Although I dont play much myself, spend about an hour a day listening to music. I've been into drawing for as long as I remember- before I could hold a pencil I staired at picture books for hours 
but yeah anyhow 
