(Play the chords once each on this part.)
A5          E5            A5           E5
A la nanita nana, nanita ella, nanita ella.
D5             A5            E5            A5
 Mi Nina tiene sueno bendito sea, bendito sea.

(Play flowingly here as opposed to the last time you played this part.)
A5          E5            A5           E5
A la nanita nana, nanita ella, nanita ella.
Dm            Am            E            A (Play once and let it sound.*)
Mi Nina tiene sueno bendito sea, bendito sea.

(Play the chords once each and let them sound* on this part.)

Note: Stop the chords, with an X after them , where the X is placed.

A5                E5     (X)
  Fuentecita que corre,
E5         A5    (X)
Clara y sonora.
A5                    E5
  Ruisenor que en la sielva,
E5        A5      (X)
Cantando llora.

D5                A5
Calla mientras la cuna,
E5        A5
Se balansea.
D5           A5     E5      A5
A la nanita nana, nanita ella.

(Play flowingly here as opposed to the last time you played this part.)
A5                E5
  Fuentecita que corre,
E5         A5
Clara y sonora.
A5                     E5
  Ruisenor que en la sielva,
E5        A5
Cantando llora.

D5                A5
Calla mientras la cuna,
E5        A5
Se balansea.

(Play each of the following chords once and let them sound*)
D5           A5   E5      A5
A la nanita nana, nanita ella.

*When i write "Let it (or them ) sound" I mean you play the chord (or chords) once and 
wait 'till it dies out.