Some recent additions: Ida Maria, which @lauraolin reminded me of, brings an additional dose of dancearoundwithyourarmsintheair power. As well, any proper spring mix needs something that makes you feel like you could be sitting on a sunny stoop on Sesame Street: hence the Cat Stevens.

I developed some serious qualms with Pete and the Pirates, mainly because they’re not very good musicians, and listening to them in concert with groups like the Violent Femmes, who can not only harmonize three strange male voices and create more melody with a tenth as many notes, really doesn’t do the former band any justice. But I’m giving Pete the benefit of the season and keeping the sprightly tune in.

Now on many occasions, I’ve tried to engineer mixes that take you up, ease you down, and then roar back to a crescendo. That end, the I’ve kicked in some more juice with a double shot of the Yeah Yeah Yeahs and what seemed like a necessity for a spring mix: Le Tigre.

As much as some of these new tracks could have made great closers, I took Kristen’s advice seriously and stayed with the Avett Bros. at the caboose. The transition from “All This Time” into “Paper Planes” was too good to lose though, so I kept M.I.A. I would have worried about leaving a single hip-hop track floating alone, but I’ve ended up with a enough variety between rock, folk, punk, indie, and riot grrrl, that I’m not too worried. I attempted to fold in some funk and R&B, but it wasn’t working. There will be plenty of room for James Brown on the next mix.

Here’s the final, which I’ve decided to entitle “Sunglasses,” for obvious reasons:

http://www.appratt.com/mixtapes/sunglasses/

Muxtape was a brilliant minimalist web app that allowed you to upload songs and share them in a cute playlist on a web page. The RIAA was all over that and shut it down after a brief, shining run.

So here’s the current version of the list (it’s not embeddable): http://www.appratt.com/mixtapes/spring09/

Got any suggestions? Leave them in the comments.

P.S.: If you are teaching a screen writing class in the near future, consider using Nick and Norah as an example of how to take the framework from a mediocre book and turn it into a decent movie script.