Fundamentalist Pianism
One of the big issues that musicians think about, generally from a fairly early point in their musical growth, is how to approach a composer's expression markings: dynamics, tempo indications, suggestive instructions about emotion. My guide towards expression markings is often a sort of "spirit over letter" approach, one informed, in part, by my knowledge of the composer's process of creation. For instance, much of Liszt's music was conceived in a kind of improvisational fashion. He created a piece, in part, by experimenting on stage, eventually wrote out a version of that work, then changed it up and wrote out a new one. If you look at his dynamic markings, you'll see that they reflect this process of composition; they are often inconsistent and elusive. So, when I play his music, I feel free to experiment in my approach, sometimes doing the very opposite of what Liszt indicated in the score, if I think it captures the spirit of the piece. I would not take the same kind of liberties in works by Webern, Beethoven or Mozart, where a literal approach to the expression markings seems much more suited to those works' history. You can still find ways to assert your individuality in pieces by these composers; the hope is that their expression markings, which were so carefully decided upon, will aid you in the process of capturing the true spirit of each piece--in other words, that in these cases, spirit and letter are one and the same.
A few years ago at the Tanglewood Music Center, I performed in a master class for an eminent pianist and teacher, whose name I think I'd better not mention here. One of the other performers in the class played Liszt's First Piano Concerto, and the pedagogue spent the duration of his time with her correcting her dynamics and tempo markings so that they matched those in the score. The interaction seemed inane. He never bothered to explain why he felt she should adhere closely to Liszt's markings, and I simply couldn't understand how doing so arbitrarily had any inherent artistic merit. Over the course of his thirty minutes with the pianist, the teacher transformed her Liszt concerto from a living, breathing, entity to a set of instructions on a page.
I'm not a big fan of fundamentalism of any kind. In music, it may not have the kinds of dire consequences as in other forms of fundamentalist thinking, but it still has the potential to transform us into blind followers, robbed of our individuality and capacity to reason.

