(Play the chords once each on this part.)
Am (x02210@1)        E (022100@1)          Am (x02210@1)         EA (022100@1)la nanita nana, nanita ella, nanita ella.
Dm (xx0231@1)           Am (x02210@1)          E (022100@1)          Am (x02210@1)Mi Nina tiene sueno bendito sea, bendito sea.

(Play flowingly here as opposed to the last time you played this part.)
Am (x02210@1)        E (022100@1)          Am (x02210@1)         EA (022100@1)la nanita nana, nanita ella, nanita ella.
Dm (xx0231@1)          Am (x02210@1)          E (022100@1)          A(Play (x02220@1)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.

A (x02220@1)              E (022100@1)   (X)
  Fuentecita que corre,
E (022100@1)       A (x02220@1)  (X)
Clara y sonora.
A (x02220@1)                  E (022100@1) Ruisenor que en la sielva,
E (022100@1)      A (x02220@1)    (X)
Cantando llora.

Dm (xx0231@1)              AmCalla (x02210@1)mientras la cuna,
E (022100@1)      AmSe (x02210@1)balansea.
Dm (xx0231@1)         Am (x02210@1)   E (022100@1)    AmA (x02210@1)la nanita nana, nanita ella.

(Play flowingly here as opposed to the last time you played this part.)
A (x02220@1)              E (022100@1) Fuentecita que corre,
E (022100@1)       AClara (x02220@1)y sonora.
A (x02220@1)                   E (022100@1) Ruisenor que en la sielva,
E (022100@1)      ACantando (x02220@1)llora.

Dm (xx0231@1)              AmCalla (x02210@1)mientras la cuna,
E (022100@1)      AmSe (x02210@1)balansea.

(Play each of the following chords once and let them sound*)
Dm (xx0231@1)         Am (x02210@1) E (022100@1)    AA (x02220@1)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.