Question about composition music

[nader]

Hello I'm new in this site and thankyou for who designed it
I'm playing classic guitar and I'm working to compose a piece music
but I found hard because I dont know about the basic of composition music
I have been composing my piece ,just melody tune and I want to complete with harmony
I dont know how to explain what I mean but I'll try
More clearly: if you hear the piece music - Romance for composer Anonnym - you can hear
4 strings and the melody strings is E 1st and other is like harmony or ATTENDANT sound
may be there are many mistakes in my explanation ,but my education music is very little
and thankyou for all

[Frederik Magle]

Hi nader,
It's a little difficult for me to give advice based on your description of the piece, I'm not 100% exactly what you mean, but it could also be because I'm not an expert when it comes to the guitar. But I believe what you are asking about is actually arranging a melody you have already composed.

Generally I would recommend you study as much music as you possibly can and read sheet msuic/scores/tabulaturs. You might consider consulting a tutor if possible. You are talking about "composition music" (not just "composing" music?), which would also imply that it will be written down as sheet music/score. What is your experience in regards to reading/writing notation?

Anyhow, welcome to Magle International Music Forums - you are also most welcome to post an introduction in the "introduce yourself forum", if you like