hi, i have a big doubt about this-well, i have many pieces i've composed in my head ,and i know exactly how i want them to sound. and i repeat them from memory but not always on the same way. i mean, basic is the same, but sometimes i change left hand chords (i don't change the melody), or add thrill, or some new little phrases...
what i wanted to ask, how to put this on a paper???

i've tried so many times, but i often get tired of writing down it

(because, i don't know exactly how to do that), so i just leave the damn papers and continue playin.
i enjoy composing, and i'd really like to learn how to do it properly.
in my school we have harmony (don't know how to say in english), contrapunct (polifony), (only they teach is-you mustn't do paralel 5, not some intervals-rules, boring rules

) none of them teach HOW TO MAKE A PIECE!!!
not for vocal, not for a singer, not for choir, just nice beautiful piece for piano?!
a.m.d.