Apart from the actual notes and words used, a large part of the feeling and meaning of a song is conveyed by the expressions, inflections and phrasing that individual singers use. This is a very personal thing, partly determined by the way the singer thinks about the song and how it relates to their own musical taste and experience of life. This is why two singers can sing the same song and produce dramatically different versions.
The term phrasing refers to the individual grouping of notes and/or lyrics and the placing of punctuation and emphasis. As in speech, this can alter both meaning of the words and the feeling they convey to a listener. Here are two different ways of delivering the same set of words.
When singing any song, it is important to think about phrasing so as to be able to communicate fully with the listener. This because phrasing is a vital part of your interpretation of the song. Instrumental musicians are also aware of the power of lyrics and vocal phrasing. Many improvising musicians strive to achieve a "vocal" style of phrasing when they play. The great Jazz saxophonist Lester Young once said that he would never improvise on a song he didn’t know the words to.