Hmm.... I mostly like seventies progressive music, or songs with deep meanings or emotional lyrics... or songs that just generally sound beautiful. My favourite bands are Genesis, Pink FLoyd and Mew.
Examples of beautiful songs and songs with emotional lyrics and deep meanings I love:
Pink FLoyd: Wish you Were Here, High Hopes, Breathe, Coming back to Life, erm the whole of The Wall.
Genesis: No Son of Mine, Driving the Last Spike, Carpet Crawlers, Hairless Heart, Ripples.
Mew: Comforting Sounds, White Lips Kissed, Apocalypso, The Zoo Keepers boy.