My trumpet instructor has been telling me that I am tonguing too hard, and while I have good sound otherwise, it is making me sound very harsh and rather staccato and "blocky" to use his words.Try as I might, I don't know how to tongue softer. (I'm not onto double tonguing or anything yet, only a beginner) As a result of my harder tonguing, it's hard for me to tongue fast and play faster pieces. I think that when I began, I developed the habit of saying my "tuh"s wrong. the tip of my tongue is up against the back of my teeth, not mashed there or anything, and i entirely close up the hole of the embouchure in between tongues. Problem is, I don't really know how to fix it. When you "tuh" tongue, is it more on the backside of your teeth, on the front part of the roof of your mouth (just behind your teeth) , or just behind that part of the roof of your mouth where the ledge of your upper jaw juts down? I keep trying to tongue softer, but I just can't seem to do it! Also, how stiff should I be keeping my tongue when not tonguing notes? My trumpet instructor is a little vague about these things. How should I change this bad habit?