Most often this is the way it happens, but not always . Sometimes writing a one off song can be done quite quickly, however writing an album is usually a different matter all together, and can take weeks if not months to complete .
If you are a careful writer, you do a lot of revising. But sometimes it just flows and you don't need to edit. I write a lot of poetry. Sometimes i go back and change things, sometimes I don't.
Yes a good example is the beatles,many tunes took months to compleat,a few lines here and a few there,few tunes are written as ''one off'' compositions.
Sometimes and sometimes not :) when a song is written some do not need any fixing but then some songs need a lot of fixing
Yes Loads You Cant Get A Song There Write Way On Your First Go x