I edited your post to make the URL more "user friendly" now you only need to click on it to download the song. =D
About your beatmap, the timing seems a bit off. I tried to get a correct BPM but I didn't manage to get a proper one within the range of yours. I think the song changes BPM in some parts though. But I'm not used to low BPMs. =P
Try to see this BPM issue because the circles appear at random times in the song.