Quick question (I hope). I have a project that has markers that look like diamonds with stems (at each beat) in the timeline. I am not sure what I did to make these, but suspect it may have been audio snap. I have been trying to find exactly what these are called so I can figure out what I did to create them, what they do, and how to make them go away.

Transient Markers probably.....and yes created by AudioSnap.

I only have three audio tracks in this project, and none of them have audio snap enabled (why I am confused). I just did a screen cap of them, and this project is the only time I have ever seen them. They are actually all on the beat for the project.
 

With Edit Filter set to Transients on one of the audio tracks, right-click and go to Pool > Add MBT to Pool to disable the MBT markers.

I didn't realize that your mysterious diamonds were actually IN the timeline.  I've never seen anything like what is in your photo!  One of the "heavyweights" will probably be able to lend some assistance soon though!

Woot! Thanks Dave. I was thinking they were related to the pool but had no clue how I turned them on, or how to shut them off.
 
Yeah, that was why I put in the pic; I figured I might have been unclear. Sorry about that. The only time I have ever seen "diamonds" was with audio snap, but I am such a novice using it, I was probably errantly clicking around.