OK, so first I will learn git and other tools you mentioned. Then I start with translating.
We suggest a new translation of the documentation be started with the
most popular pages of the website. See also the discussion about
french translation that has lead to the french website
http://lists.gnu.org/archive/html/lilypond-devel/2005-04/msg00233.html
Tranlating the tutorial would be nice but there are many more people
reading the website.
Then
I will start translating the web page as you say. And later we will see
if there is still time to do tutorial translation. I see that you are
hard working on documentation, reorganising everything. How may I fit
in it with my translation? Should I work as a easy helper? Should I
send my translations every week?
Francisco, how do you check (and how often) if the page you have translated has changed?
michał