I'll list a few good songs of some of her older albums for you.
A Song for XX:
poker face
POWDER SNOW
As if...
For My Dear...
LOVEppears:
Trauma
And Then
TO BE
End roll
appears
monochrome
Duty:
Duty
End of the World
SCAR
SURREAL
SEASONS
Key ~eternal tie ver.~
I am...:
I am...
Connected
evolution
NEVER EVER
Daybreak
M
Dearest
Endless sorrow ~gone with the wind ver.~
Rainbow:
WE WISH
Real me
Free & Easy
everywhere nowhere
A BALLADS:
RAINBOW
YOU -Northern Breeze-
SEASONS (2003 ReBirth Mix)
Who... -Across the Universe-