Newbie introduction and question

Hi folks,

I'm a newbie, both to this list, and to conlanging in general. I'm a
college senior majoring in music, and I've been picking up a heavy
interest in languages over the past year or so. I've decided to give
language construction a shot. I'm not a linguist or anything, but I've
been picking up tidbits here and there on the subject.

My question is this: Could someone give me a prioritized list of the
steps one needs to go through to construct a viable language? I need an
itemized list of decisions one needs to make about phonemes, morphology,
grammar, syntax, vocabulary, etc.

Thanks very much,
Dan Seriff