A song is a set of lyrics and music. Some songs have lyrics only, while others are a hodgepodge of both. Lyrics are the most important element in a song text, if only for their ability to influence the listener's emotional state. Often a song's lyrics can be a combination of the best and worst of a writer's creativity.
The best song lyrics are often written in one go. However, there are plenty of instances where the lyricist must make tweaks to the text in order to get the final product just right. Luckily, there are virtual assistants and other software tools available that can do all the dirty work for you.
One of the most fun and rewarding parts of writing lyrics is figuring out the right balance of words. For example, a lyric can be as simple as a series of short phrases, or as complex as a rhyming stanza.