i found this song on youtube. i'm not sure what language it is in but I like the piano music.
http://www.youtube.com/watch?v=vRQOotmsoFo

Also on youtube is a video of a guy playing it. i messaged him and he said he doesn't have the sheet music but he does it all by ear.
http://www.youtube.com/watch?v=PibKLrX48a8

i found the chords online here:
http://www.tab4u.com/tabs/songs/4041_יום_ראשון.html

How could you get all the notes for the song just by ear?

Chords link doesn't work. Here they are:

============================
Opening:
Cm
Cm Gm Cm
Gm
C Gm Cm
Cm Gm7
D7 Cm
Ddim Cm Eb
Gm D7
Cm Gm Cm
Gm
C Gm Cm
Cm Gm7
D7 Cm
Ddim Cm Eb
D7


Transition:
G Cm G Cm
C#m Abm C#m
Abm
C# Abm C#m
Cm Abm C#
Eb D7 Cm
D7 Ddim Cm


End:
Gm C Gm C x4
===============================