Also:

Sing your consonants. (It isn't "Prai the Lor," it's "Praise the Lord.")

Make sure all singers sing the consonant at the same moment at the end of the line. (It isn't "Praise the Lord d d d d d d d," it's "Praise the Lord.")

Cant argue with those rules

If you are a singer, use a directional mike unless you are sharing a mike with someone else.

That is, if you are a singer, use a directional mike, unless there are two or more of singing into the mike at the same time.

Just remember this, The rules of harmony you learn in a music theory class were a discovery, not an invention. Harmony is all about how waveforms overlap and even if you don't learn all the rules, or purposely try and break the ones you know, you're still following the rules of harmony because they are really laws of physics.

Rule # 3
Profit

Yeah, rules are necessary in music too. It is not any hard and fast rules but only made to create the music in its originality..:band:

1. Take some chords
2. Put them together
3. ???
4. PROFIT!

(sorry)

I'd say there are no rules, only guidelines for music. However, people have been making music for so long that it isn't a bad idea to heed their advice. But then again, maybe I'm too loose with my definition of music.

I have my own vague personal rules of what is and what isn't music. Let's say a famous, artistic, pretentious dick of an artist releases an album with only one track and that track features only the sound of a rockslide crashing into houses or people being shot with machine guns. That's not music to me. Even though it may require a bit of thinking to sort out all the reasons why that is, it's clear that I have some sort of definition of what I think of as music. If all those rules are broken, I no longer think of what I'm hearing as music.