hi this is mr ken and today i'm going to show you how to change a marching tenor head got my trusty high torque ratchet key i'm going to remove the old head which is split the top of the two plies split i'm releasing tension evenly off of the hoop instead of just completely detentioning each one going around you want to minimize the chance that the hoop is going to bend just a little bit ease up using different cross patterns from one side then the other one side to the other back to what we started on eight lug drums i like to do what they call south north east west and then the box center my body over the nearest tension rod that is my southern point and once they're pretty loose found the fastest way to take them out is by spinning them with your fingers some like to use high speed keys that's fine that's up to them once they're all loose this one you may need a key for if you can't get your fingers in between the number four and the number two drum in this case our number four is a 13 inch pearl marching tenor ground and the type of drum head that we're using this is the band director's choice this revo ebony pinstripe two fly heads do pretty well on the field for projection and clarity so i have the replacement head i remove the hoop just slid slid the old head out of the way take the new head put it on top they like to put the logos facing the audience that's all personal preference some groups take nail polish remover and that comes right out and it gives it a nice clean look it doesn't change the sound at all so now what i'm doing is i'm re-positioning and giving it putting the tension rods in place just a little bit so they're all aligned now go finger tight again south north east west in the box one two three four at this point when they're just finger tight it's important to take a look from above to make sure that the head is centered on the drum itself that it's not too close or too far from the rim then typically from here i'll give each tension point one full crank that's full from where i feel attention not from where it starts turning so i felt started feeling the tension here let's call that the nine o'clock position to my body so bring that around to nine o'clock here i felt it right around the six o'clock angle a very important aspect that a lot of people forget to do is called seeding the head there's different ways to do it i like to just use the basic good old punch technique what that does is kind of gives the plastic a little bit of a memory as to where the edge of the shell is where the bearing edge is so from here now i can give it a bit more tension a quarter turn each a little bit to bring it up it's still way out these days with marching drums they tend to go for quite high tension quite high pitch that way it's hurt over a lot of the mid and low range brass still come a bit at this point i like to re-seat it you can hear the tension releasing in the head a little bit as it stretches and the way that i tune is i just lightly put one finger in the center of the head i'm not even pressing it i'm just touching it get an idea of which tension point is too high or too low to be a bit south so from here i'm using my musical here to fine tune using the harmonics as you even the tension out those overtones will continue to rise until the whole head is in tune with this i think this up barely south and that should do let's get an idea of the sound that's how we change a marching tenor head one extra step actually is to make sure that it is in tune with the other tenor heads i didn't tune any of these other tenors obviously this one has been played quite a bit more so i'm going to tune up this drum that happens to be sitting right next to it south north east west this one's a little slightly higher do that one's a little bit too high for that a little too high so these are going to change very soon after this get played because this one has been played for a bit longer so it's already broken in this one's going to stretch a little bit and then they're going to have to re-tune it on later so there's how to change a marching tenor head this has been mr ken and will be mr ken thank you