Sad Opera song from Latin ?

first of all, let's clear confusion , i'll suggest music might like, okay?

2 examples give soundtrack music--that's why neither considered classical music or "opera". lot of soundtrack music quite , enjoyable listen to, created go along whatever action or drama portrayed in game, movie, television show, etc. not "o fortuna" part of "carmina burana" opera--the whole work considered type of cantata. "requiems" not operas either--they special roman catholic masses (church services music) dead (which why might hear sad or mysterious sounding music). old catholic religious services (plus traditional congregations) used hold services in latin.

think of operas musicals classical music , little or no talking. more detailed explanation, go here:
http://en.wikipedia.org/wiki/opera

"opera" not, single song. not might sung in high voice or using known "head" voice. don't feel bad being confused because people claim "opera singers" (but never had actual training) confused too. people show on shows "america's got talent" singing bad italian lyrics yep--movie soundtrack themes (ex--"nella fantasia").

promised list music might like. lucky daughter plays video games , watches anime. suggested following (and in latin)
"the promised land" final fantasy 7: advent children complete
says final fantasy series in general uses lot of latin in score. make things seem more mysterious.

music sounds composer mimicking style of church music, list of you, renaissance era songs might because pretty , sad (some in english though).

"ave maria" giovanni palestrina (composer)
http://www.youtube.com/watch?v=xguud20hb...

"stabat mater" (opening duet) giovanni pergolesi
http://www.youtube.com/watch?v=s_qjjpbad...
if it, might want listen entire work

"pie jesu" "requiem" gabriel faure
http://www.youtube.com/watch?v=dhbuebcqopo

"the silver swan" orlando gibbons
http://www.youtube.com/watch?v=xobblqfxf5q

"flow tears" john dowland
http://www.youtube.com/watch?v=x1rs1i5wy2q
"time stands still" john dowland
http://www.youtube.com/watch?v=llu82qjzecs
"in darkness let me dwell" john dowland
http://www.youtube.com/watch?v=ym1kwj1twku

can't beat john dowland sad, moody (but beautiful) songs. if in english.

hope find like!

not spanish mean latin rome,here example opera song:

somnus yoko shimorura ( final fantasy )
lilium kumiko noma ( elfen lied )

, please don't o fortuna, it's great , i'm looking sad or moody one.

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