Slowing down track under normal speed?

[nasif-co]

Hello,

I've found that the setPlaySpeed(); method only allows for values above 0, making it impossible to force a song to play more slowly than the original file. Is there a workaround for this? I've tried putting both a normal speed and half speed file into the SD card and loading the latter with twice the currentPosition(); of the former to simulate it sped down. However, the tracks don't match up (I'm assuming it has to do with the inaccuracy of currentPosition(); or perhaps multiplying it by 2 is just plain wrong?)

Thanks for any help you can offer, and beautiful library btw!