How to insert music:

You can add a bit of sheet music, along with a MIDI file, just by entering note names in Lilypond syntax between the [L] and [/L] tags. Bar lines are added automatically. Maybe use the melody editor to get started, but in the long run it's probably easier to enter notes directly as text.

The forum has a "preview" function, so you can experiment as much as you want.

How to mark a thread as solved:

If the original question in a thread is solved, please mark it as solved using the "solved" icon (or by just typing [solved] into your post). This makes life easier for people who are willing to identify melodies, since unsolved problems are easier to spot that way. If a problem turns out to not be solved after all, just write [/solved] in a new post, and the thread will be labeled accordingly.