BPM Trigger additionally to the speed trigger

Next Feature Idea: a BPM Button which blocks the speed value
I'm pretty sure either minim or another library out there is able to check the current BPM of a song and then triggers the current effect per beat

This could be additionally to the speed trigger

1) Speed is more a blocker: a effect trigger only triggers within a time value calculated by speed + H/S/K/P
2) BPM triggers a effect by beat

I'm not sure how easy this is to implement, though
If the BPM Trigger also needs H/S/K/P or just triggers every beat etc.
##

---
Want to back this issue? **[Post a bounty on it!](https://www.bountysource.com/issues/36488126-bpm-trigger-additionally-to-the-speed-trigger?utm_campaign=plugin&utm_content=tracker%2F444396&utm_medium=issues&utm_source=github)** We accept bounties via [Bountysource](https://www.bountysource.com/?utm_campaign=plugin&utm_content=tracker%2F444396&utm_medium=issues&utm_source=github).