QUOTE(jacobpianofluteorgan @ Jul 3 2009, 09:53 PM)

Going back to the topic, would you really need to understand every word yourself as well as the singer, I would have thought thatr like accompanying intrumentalists, you just follow them, and if you're musical enough and experienced enough you'd be able to react to what they do and "feel" what is happening instead learning the song yourself.
Often you find yourself in the position, as accompanist, of needing to help a singer get up to concert standard, and you can often make useful suggestions regarding word/phrase emphasis, rubato elements etc. Unless you get into a fictitious world where you are dealing solely with professional singers, in most instances the accompaniest is generally more musically accomplished and technically proficient than the singer.
So, singers have intonation, breathing and timing issues (which other instruments do have to varying degrees). But one very significant difference is that the singer is relying on the accompaniment for pitch, its not like on an instrument where you can pluck/blow etc a specified note out of thin air. ie: If you mess your accompaniment up you're more likely to throw a singer than an instrumentalist.