CapriUni--

In terms of the lyrics not quite fitting with melodies that are in MIDI files--I have noticed this as well--part of it comes from the fact that each lyric phrase really is slightly different, melodically, and generally, the midi programmer doesn't enter the melody so that it corresponds exactly to each verse--You really have to learn the melody, then interpret so that it fits the lyrics-- Most of us learn songs by listening to a singer who has already done this already--

As to your own songs, if I understand you, you don't know which notes are the melody and which are chords in your own compositions--If you don't know, why would anyone else know? You need clean up what you have written so that there is nothing there that you don't want, and so that there is a good reason for everything that is there--

For instance, the melody shouldn't be split between two staves, and you need to clean that up--And if you have a melody note in the middle of two chord notes, you are not doing your job as a composer--

You should write your melody out as a single note line, without any harmonizations or chords first--It should be written all in one staff, and it should be in treble clef--The chords, if you write them out in notation, should be written on a separate staff, even if it is in the treble clef--You can write a single voice harmony part on the same staff, but you must make sure that the top notes are one part and the bottom notes are another