spanish, German or Italian?

Hi, everyone, I am listening to Montserrat Caballé's DIE GROSSEN ERFOLGE (88697 14173 2). In disc 2, there are "Olé, Olé" (duet with Los del Rio), Traditional songs "G’ schätzli" and "La-Le-Lu", and Air (aus der Orchestersuite Nr.3) by Bach, who can help identify these 4 songs and find lyrics and translation for me? Thank you!

This is the CD, with music samples
http://www.amazon.de/Die-gro%C3%9Fen.../dp/B000VFGT2W


Here are the lyrics for La-Le-LU, its a lullaby song

1. La Le Lu
nur der Mann im Mond schaut zu
wenn die kleinen Babys schlafen
drum schlaf auch du.

La Le Lu
only the man in the moon is looking
while the little babies are sleeping
so you should sleep, too

2. La Le Lu
vor dem Bettchen stehn zwei Schuh
und die sind genau so müde
gehn jetzt zur Ruh.

La Le Lu
in front of the bed there is a pair of shoes
and they are as tired as you
and (they) go to rest/sleep now

3. Dann kommt auch der Sandmann
leis tritt er ins Haus
sucht aus seinen Träumen
für dich den schönsten aus.

The sandman will be coming
will quietly come into your house
and he will be choosing one
of the nicest dreams for you


(corrections are welcome)