I'm assuming that this is about this tune:
http://www.youtube.com/watch?v=WgqI_tGw7HU
I think that this beginning is correct:
a/D-C/D-E/F-E/D--/-/G-A/F-
but from that point there is a wrong note I think.
It would be possible to give you the notes but
I also think that finding them is a good experience for you.
You can either "pick it out" with your instrument going from beginning to end or
you can try this:
1)Count the number of notes in the melody.
Then
2)create an line of boxes on a page for every note in the melody.
Now,
3)Pick one note on your instrument that you are pretty sure is in the melody and as the melody plays, try to find where that note is played in the melody. Fill in the boxes that have that note.
Find another note and do the same until you have all of the boxes filled in.
If the piece doesn't have a lot of accidentals (Sharps or flats) then you pretty much have a limit of about 7 or 8 choices for notes. CDEFGA(B or is it?) This piece with a limit of maybe 7 or 8 notes is a lot easier than a piece with all of the 12 chromatic tones. Sometimes the notes may be a higher or lower octave but they still have the same name.
Also, If you want to write down music,
It would be good to use paper with a staff of five lines.
This way you can read it properly.
You will need a key signature and a time signature.
My hints are for the "time signature" that the first note A is a pickup and the D is the first down beat. How many beats are there before the rhythm tends to repeat and there is a stronger beat note"
In what I wrote above, I added the / for the measure or bar lines. If a note is longer than 1 beat, I extended it with the - symbol. This above is according to the melody at the beginning of the Youtube link.
IN this piece the is a hitch because with the time signature the number of beats in each measure may not always bee the same. He extends the time sometimes at the end of a section or phrase.
For the key signature, this piece may be a bit more tricky too. The pickup A probably represents the fifth note of what we call the tonality or key signature BUT the second note d has a c natural after it. This may mean that it's not D major and it may also not be D minor because in D minor there is usually a C#. The C natural may throw you. ;-)
Pretty piece.
Enough for now.
~bilbo
N.E. Ohio