For Playlist Junkies, An App To Send You Down The Rabbit Hole

Chicago DJ Mary Nisi is no stranger to the art of the playlist. As president of the wedding DJ company Toast & Jam, she builds them regularly for receptions of all kinds.

But this week, Nisi’s giving the music app Songza a spin. Songza, available on iPhone, Android and Kindle Fire, offers ready-made playlists for all kinds of activities, from “Waking Up” and “Unwinding After a Long Day” to lists with tongue-in-cheek names like “Indie Music That’s Not Too Weird.”

Nisi finds little fault with this virtual mix-tape builder — but she has one word of warning: Once you load it up, you may not be able to put it down.