The new iTunes Genius thing,

Genius is an understatement. This thing is a Harvard grad on steroids and heroin. Unfreakingstoppable. You pick a song, it makes you a playlist. For example:
I gave it Lost in Love - Air Supply and it provides:
Babe - Styx
On and on - Stephen Bishop
Reminiscing - Little River Band
Can't Fight This Feeling - Reo Speedwagon
Harden My Heart - Quarterflash
Dance With Me - Orleans
The Things We Do For Love - 10cc
True - Spandau Ballet
Who's Crying Now - Journey
Do You Believe In Love - Huey Lewis & The News
Goodbye Girl - David Gates
In Too Deep - Genesis
Song Sung Blue - Neil Diamond
Sister Christian - Night Ranger
All Out of Love - Air Supply
Beth - Kiss
How Much I Feel - Ambrosia
I'm So Excited - The Pointer Sisters
Longer - Dan Fogelberg
Still The One - Orleans
I'd Really Love to See You Tonight -England Dan and John Ford Coley
Ride Like the Wind - Christopher Cross
Baby Come Back - Player
Keep On Loving You - REO Speedwagon

AMAZING!! I'll try something more interesting next.

A Holiday Muxtape

Tonight's Muxtape

Black Sabbath - Behind The Wall Of Sleep
The Monkees - Circle Sky
Jay Reatard - My Shadow
Kate Bush - Wuthering Heights
Kristin Hersh - Your Ghost
Gary Higgins - I Can't Sleep At Night
Guided By Voices - As We Go Up, We Go Down
Hall and Oates - You Make My Dreams
Hot Butter - Popcorn
Songs:Ohia - The Moon Undoes It All
Pavement - The Killing Moon
R.E.M. - Feeling Gravity's Pull
don't just sit there, click the damn tape!

Everybody's doing it.

Muxtape
Note! This one is no longer available.

Fascination - The Human League
Chains Of Love - Erasure
The Way That I Found You - Ladytron
Hold Me Now - The Thompson Twins
Elegia - New Order
Are 'friends' Electric? - Gary Numan & Tubeway Army
Walking Away - Information Society
Nothing Better - The Postal Service
Homosapien - Pete Shelley
One More Chance - Pet Shop Boys
I Don't Believe You - The Magnetic Fields
Kiss Me - Stephen Duffy

I get David Gray, but Raspberry Beret?

From Mother Jones:

Spooky Music For Spooky Occasions: The Halloween Mix

First off, I must give props to Scar Stuff, where all the songs marked with a * are available for download.

Spooky Music (Part One)* - Columbia Playtime 7"
Witches Brew - Hap Palmer & Martha Cheney
Werewolves of London - Magnolia Electric Company
Ghosts 'n' Goblins - The Advantage
Excerpt from It's the Great Pumpkin, Charlie Brown*
Red Right Hand - Nick Cave & the Bad Seeds
Tubular Bells - Mike Oldfield
Everyday is Halloween - Ministry
Excerpt from It's the Great Pumpkin, Charlie Brown*
The Witch - The Sonics
The Munsters Theme - Comateens
Pet Semetary - Ramones
A Spooky Sounding Halloween Story* - Kraft
Ghostbusters - Ray Parker Jr.
Dead Man's Party - Oingo Boingo
Dr. Heckyll & Mr. Jive - Men at Work
Devil Woman - Cliff Richard
The Monsters Go Disco* - Count Chocula, Frankenberry & BooBerry
There's a Ghost in My House - The Fall
Halloween - Siouxsie & the Banshees
Lullabye - The Cure
Excerpt from It's the Great Pumpkin, Charlie Brown*
Theme From Halloween - Mx-80 Sound
Halloween - Misfits
Spooky Music (Part Two)* - Columbia Playtime 7"

The Hap Palmer track is a song I remember from Kindergarten. It is an original by Hap, who pretty much just makes educational records that get played in school. There's nothing much educational about the song, which is about putting things such as "spider webs, moldy bread, fingernails too" into a witches' brew, then wondering "what's it gonna do to you?" I reckon it will fuck you up pretty badly, especially when you get to the motor oil.