Well, while that may work some of the time, it's unlikely to bring you consistently effective results. Music and speech are two different forms of communication, and without careful attention it can be hard to make them work in tandem. Lyrics that are improperly set will create speed bumps for your listener, and distract them from where you want the song to take them.
However, by looking at what music shares in common with the spoken language, we stand a better chance of creating a melody that will sit properly with the lyric, or vice versa. By first focusing on rhythm, many of the problems that occur later down the line can be eliminated through a process called "Lyric Setting."
About the Author:
Sam Dawson is a 2015 graduate of the Academy of Contemporary Music in Guildford. Specializing in Guitar and Songwriting, Sam now operates a music tuition service from his studio in Hessle, UK. Guitar Lessons in Hessle