The Postal Service: We Will Become Silhouettes
the experience of Lori, a sound->vision synaesthete.

Q: Does each voice have a different color, and instruments as well?
A: Yes, his voice in this song is a baby blue, and sometimes yellow and green. It changes with the tone. There is a small amount of hot pink in there too. Each instrument also has color, and a lot of other attributes as well. They change slightly as the song moves, and they can also move from one area to the next.
Q: And do they move, or are they static images/colours/shapes?
A: They are more like shapes/blobs that float around in 3d space. It's real difficult to explain.Each "layer" or "object" of the song has a different shape, like a "ping" will be shaped like a small circle and its placement depends on its pitch. And they do move like I said earlier.
I can tell you what different parts of the song look like piece by piece, the beginning of the song starts with some blue "waves" that fade off that are in a triangle shape on my left side, then that "ding" comes in and it's a circle which starts on the outside blue/green and goes to blue/purple, it fades inwards as the sound goes away. About 1 min 25 sec into the song, it has a yellow-orange backdrop, and his voice is like a baby blue-pink-yellow object towards the top, the drums create goldenrod circles like the pings, in the background. That "wush" sound in the background is a very light purple-y blue colour. It has an "airy" texture, or the texture like when you spray water or something. Very misty yet solid parts at the same time... It is on the left side halfway up. And kind of comes out and curls upwards and disappears, I'm not sure though because it's so fast. About 3 min and 8 seconds into the song, his voice has some brown in it now, it's still an un-identifiable shape at the top, it reaches from one side to the other, and the female voice is slightly below it and is smaller. It is only under the right side and it's shaped like a rounded square with wave-y edges, it’s orangey and pink and purple. That high pitched noise is pink and it's like a giant wave in the background. That "wush" sound still looks the same of course, and it still has that yellow-orange backdrop but it's more yellow now.