a stupid question (ties / slurs)

[Simon Bailey]

hi all,

i have a question. i know the musical distinction between a slur and a
tie; however when i was just transcribing a some music, i found that
lilypond doesnt seem to make a distinction:

\notes {
\time 4/4
c4 c4 c2 ~
c4 c2.
}

gives the same result as:

\notes {
\time 4/4
c4 c4 c2 (
)c4 c2.
}

or does it?

now for the stupid question: is there a difference in the lilypond
implementation of slurs and ties? or does this only come into effect
when ly files are converted to midi?

greetings,
simon.
-- 
Confucius say, man who live in glass house shower in basement.