pitch: This is important as it is sort of the main building block that makes up the melody and sound of a song.
Melody: This is important as it is likely what people will remember the most from your song.
Harmony: This is important as it adds on to the other two pieces by making them sound better and providing variety to the song.
Rhythm: This is important as it gives the rest off the aspects a scaffold or support to stick to, bringing everything together.
Timbre: This is important as it what the listener hears, if every thing else was perfect but the timbre was bad, then it would be the most noticable of all.
structure: This is important as it provides organisation to the song and makes it more replayable, in my opinion.
silence: This is important as it can be used in combination with melody, pitch, and harmony make a very enjoyable listening experience
