This Realm – Natacha Atlas
I think this is one of those tracks that approaches sheer perfection. Love the tempo of it, the vocals are great, and the melody, the wooshy synth bits are absolutely incredible.
I had this on an MP3 player when I was working in Toronto several years back, and I spent, days, weeks, probably months, with this song on endless repeat, on my seemingly endless commute. Love it.