Hints to Rhythmic Murder Mystery

Listen closely here: 10:30-10:40
Next hint

Listen for the noise this murderous thing makes when it's used; there's one telltale hit on the electronic drum.

easiest to figure out between 14:08-14:55
Next hint:

In 4/4 time we can drop out the last 8th note of a measure to obtain this beat cycle.

listen from 19:00-19:10
Next hint:

Ringing and springing surrounds this clue, which sounds different from all the other mechanical noises.

listen from 25:44-27:16
Next hint:

The subdivision between 8th notes and 16th notes. . .

pertinant rhythm first appears between 34:49-34:58
Next hint:

The rhythm in question would be counted, "1-trip-let-2-trip-let-3, 4-trip." Remember, replace each 8th triplet with a "." (dot) and the quarter note with a "-" (dash) and then see which word may be created by joining together the letters in the key.

easiest to figure out from 40:22-40:29
Next hint:

If the second hand on a clock moved twice as fast as it really does, seconds would occur just a bit faster than the BPM answer!

listen from 45:36-46:00 and 47:50-47:56
Next hint:

The low ostinato pattern played by the bass drum trigger in the second section is a marimba note.

listen from 39:15-39:28
Next hint:

As he lay near death, Krishna mentioned he had this type of a problem.