1. Juanes - A Dios Le Pido
If you're a Spanish teacher, this song is great for teaching the subjunctive. It's also Juanes' best song.
2. Kaki King - Air And Kilometers
Kaki King manages to wring an incredible amount of emotion out of her guitar. The breakdown about a minute in is great.
3. LCD Soundsystem - All My Friends
Surprisingly, the repetition of the keyboard line for 7 minutes doesn't get tiring, but just adds to the melancholic punch of the lyrics: "You spent the first five years trying to get with the plan, and the next five years trying to be with your friends again."
4. Yeasayer - Ambling Alp
It's got a great hook and appealing vocals, but it's the complexity of this song that brings it up a notch: the intricate bassline, the synth run at the end, the drums that anchor the rhythm.
5. Thom Yorke - Analyse
Deceptively simple and terribly affecting.
6. Porcupine Tree - Anesthetize