Songwriting is a very small part of the music spectrum, but it definitely gets the most attention, because songs are typically more accessible to the untrained ear than sophisticated musical works. When writing music with lyrics, the focus is almost always primarily on form, as it helps dictate how the words will fit together on a macro level. Rhyme, meter, and tempo are secondary, but are not insignificant. Harmonic form/rhythm is arguably the least important aspect of a song, because, as already stated, the same four chords could be looped repeatedly and one could think of a ton of existing songs that might fit, like so: [urlhttp://www.youtube.com/watch?v=JdxkVQy7QLM]http://www.youtube.com/watch?v=JdxkVQy7QLM[/url].
All music doesn't sound exactly the same, Gl1tch. If, however, you are listening to a piece of music with different listening priorities (valuing one aspect over another, such as harmonic structure over melody) than what the composer had in mind, you will be disappointed.