Music’s Effect on writing – Positive or Negative?

If I’m at my computer, music of some type is usually playing. Given that most of my work after the first draft is done at the same computer, the effect music can have on it is a large concern. Is music’s effect on writing positive or negative? The answer in my experience, depends on a few factors.

Vocal, Instrumental, and Tempo

Whether the music is instrumental or vocal can change how it effects my writing. Though I don’t notice it in non-creative circumstances, my sub-conscious tends to focu...