Muxtape got shut down and it left a huge void in the mixtape making world. If you still haven’t found something to replace your Muxtape use, then take a look at Tumbltape.
com. This service, lets you create playlist using the songs you have added to your Tumblelog. If you’re a user of the Tumblelog service, all you have to do is type in your user name and the site will automatically generate a playlist from the songs you’ve added to it. A great thing about this is that it lets you browse through other peoples’ playlists, making this a great way to enjoy new music and meet new friends through Tumblelog. The site takes the track name and artist from your audio post, but you can change it in case it messes up. This gives you full control on what people see as your playlist. This is something that should be incorporated into Tumblelog, but as long as they don’t, we’ll settle for Tumbltape.com.
TumblTape.com In Their Own Words
“Inspired by muxtape, each tumbltape is created from the latest songs on a users tumblelog.”
Why TumblTape.com It Might Be A Killer
“Inspired by muxtape, each tumbltape is created from the latest songs on a users tumblelog.”
Some Questions About TumblTape.com
Won’t it get closed down as soon as it gets too popular? How can they stop that from happening? 
