The swinger puts swing into your music. This command line python script (about one line of code per hacking hour) takes two arguments (i.e., a song and a swing factor) and alters (i.e., time-stretches) every beat, one at a time, to give it a swing feel. It works by stretching and compressing every half beat to complementary durations, pulling and pushing the audio, while retaining the original tempo. The effect is controlled by the swing factor parameter (a value between -1 and 1) representing the percent of deviation from original (0 being no variation). With negative values, swingy songs can also be turned to square binary rhythms.
Every Breath You Take (swing version) by TeeJay
Money for Nothing (swing version) by TeeJay
Cream (swing version) by TeeJay
I Will (swing version) by TeeJay
The Echo Nest Python Remix SDK
including, pydirac, action.py, cloud.py