 Yes, welcome to a presentation on flutes and especially on the workshop on flutes that is going to happen actually all the time during this beautiful congress. I will keep it short now, half an hour more or less and I'll introduce basically all the types of things that I've been discovering but I thought of also saying stuff in German so I will now do the same introduction more or less in German. Hallo, ich pfeife darauf, ich pfeife auf diese Pfeife, die einigermaßen also Thema des Workshops ist. Ich habe jetzt eine halbe Stunde um etwas über Pfeifen zu erzählen und mein Weg zu den Pfeifen und der Workshop der auch am 29. noch stattfindet, der ist eigentlich jetzt schon begonnen, weil jetzt würde ich schon alle Menschen in kurz einladen mit mir darauf zu pfeifen und ich bin darauf gekommen, nachdem ich viel mit Wind gearbeitet habe. Ich bin Künstler, ich bin Klangkünstler und Produktedesigner und ich habe lange mit einem Windkanal zu tun. So, I'm an artist, I'm a sound artist and a product designer and I will tell you a little bit about the background of how I got into flutes. Since I'm not a flute player, I just came into the work of the wind tunnel I've been building and the wind tunnel is setting all the spirits of the wind free for me. So, what I would love to share with you is some of the findings during that research on wind in a close-up with also all the time the website in the screen, I hope. Yeah, you see it right there, that's the website where you find also the designs and some of the background information. So you can actually already see that the workshop is open to anybody and you basically can quickly see some movies from the things that I've been introducing right now simply a little bit better edited and already worked out a bit. So now I will just introduce you plainly all the steps that occurred to me and I hope I inspire you to also blow on it and blow on anything you see with a hole because that is basically the starting point of how I got into it. Also, I actually came up with everything that has a hole to blow. I thought that meant, for example, with this toy, that there was a moment where most of you could see the helicopter and I recognized the gaps that should be in the window or as a window gap and there I am curious if I can make the sound again. That is, of course, the live moment, but there comes something. I got it out louder, but what I actually just want to show you, what I just want to indicate is that everything that has a hole potentially also has a way to sound. And even in the research I came to even a simpler conclusion but I will also first play this little snail for you. It looks very nice and it has a great tone. It's kind of an object hack, that's why I'm so interested to it. Maybe anything that does not occur like a whistle can suddenly become a whistle and this is a key understanding to the workshop because basically there's a lot of physics involved in flutes. I mentioned this on the website, you see there is a flutomart where you can all calculate all the holes for the right pitches and so on. In this sense I'm not very interested in the flutes because I think the work already has been done in this part. I'm more interested into sounds that are particularly maybe recognizable due to other types of flutes that we know as bird calls. So this is all other principle than a flute though but it does make a complete other sound that interests me a lot. So there's a lot of other flutes that I could now blow, for instance this one. You might even know with bird I was calling right now. But I will transuse a little bit to German again. So I actually tried to hack the objects where there is a hole or a flute or a edge. There it can potentially become a whistle and this is also at the same time the interest that I would like to follow with you, the ones that are also interested in to discover the sounds, the aero sounds. Aerosol is of course also the title, the title for the objects that I will introduce later, that also have to do with water. And I would very much like to call the soul, the spirit. So like the pipe, it's already 40,000 years old. We already found the first pipe back then and pipe sounds are actually something that a lot of cultures are able to experience over time. And various flutes, that I will actually show you here very briefly, you only need a small pipe. So there the idea goes through and because it hits on a edge, it starts to decide to go up or down. And then comes the von Karmen vortex that makes the sounds audible in the air. Yes, so it's about how in a certain way an oscillation occurs here. I can now just draw down the other pipes that we know, the triller pipes, for example, that would look something like this. And yes, that would be this pipe of course, where it is, there it is. So we all know it. It is particularly loud, it has a nice slit there and also a ball that is not 100% necessary. It makes the vibration that you hear again within the tone that oscillates into the tone. You can maybe see it in the English version as well. I'm going to explain a little bit the simple whistle again of an English. You will have a small pipe here where the air is coming out and the air has to decide to go left and right and this decision, this oscillation is basically making the sound. That is where we are in the von Karmen theory. As I already showed you earlier with the other whistle there is another vibration in the tone due to the ball that is inside. Actually I started then to use all kind of materials like the bamboo, which is very famous of course for flutes and I started to make very simple holes and trying out what does it actually need from a DIY perspective to have this slit or this tone. I came across this type of bamboo flute which doesn't really work at this very, very moment but with very little air pressure it works a little and I found out that there are other ways to just make a slit like this as in the Japanese flutes where you can then also make the tube basically with your mouth and then find the air onto this slit. I will continue with some other flutes that are not flutes in this same sense. What we have here is a typical serene. It's basically based on something that turns and makes an oscillation due to the fact that you blow in the air and the air goes quickly through this tube which is inside and you hear the more wind you put in the higher the pitch gets. So that is one type of pitch surge. I will tell you that in German again. This serene is built through a pressure in the flutes. It's not a flute, it's a serene and this turning movement that takes place in this thing is also the trigger because it interrupts the air. But I still have these flutes because they explain that with this type of flute the volume plays a role and how the sounds change. I will do that too. Maybe that explains it by itself. No, I can't. There is the volume of the output factor for the pitch and with the famous flutes that we have here in a very nice form it's about the open side and not the volume but where the first hole is and the hole size makes the pitch and the possibility to play. As I said, I'm not a flutist but I also have a bit of a blast. So I was explaining quickly the two types of flutes that you have in the sense of a resonance body or a piping. The piping that you just heard is typically a flute where the pitch is considered to be made by the holes inside and the volumes are more the ones that you just saw with the syringe. You have a different volume so what I'd like you to invite to in this workshop is basically to come along with the travel where I do another experiment. Maybe you see already these types of flutes. This is also a flute but then basically put into two PET bottles and those PET bottles work with the water underneath just like a sea organ. The water that goes in and out pushes the air up so on the website you will see a whole film on the organ that I built into a bath with 35 organ pipes this sense and you can then hear the water move through the pipes of the organ and that's why I got also into water and wind together and I discovered that there is also the bird call that has a water reservoir inside this bird call does bubble around and I thought that is a very interesting sound. So here we saw that I made a organ pipe with two PET bottles which then was pushed up on the water surface and that is made audible so you can do that in different settings and then I have a setting in the bath with 34 organ pipes which all have reacted to the water on the movement of the water and so I hung together with water and flutes on an discovery that is already there the bird calls with a water reservoir they make a nice blooming sound they make an interesting mixture between something toxic and something that is very important and then I wanted to also briefly play two or three flutes they could then as a starting point for the workshops and for the 3D printing which all of our wishes serve as a preface we translate again in English so I came to the moment with the bird call that has this water resonator underneath and a bubbling sound that is stochastic I thought this is potential that could be built out and built into 3D printed flutes so what I'm going to just show you in a bit is the combination of a water reservoir and a flute and the water reservoir does actually make this sound different I'm just going to play it first and then I explain what you are listening to when I call it right now it looks a little bit like a snake I also think it looks a little bit like a thumb and thumbs up so it has connotation on several things but what I'm going to explain you is that there is a second tubing in this tube and it all goes all the way up to the end of the pipe inside and with the second hole right here I can blow same amount of air in as I do for the flute tone and with this air on the backside I can make these bubbles and I can also push the water back in so I can make these pitch slides and of course those are not new we know them from these type of whistles where you also can make the pitches go up and down by changing the volume quickly but this time you do it without as you could see without the second hand and you are basically more busy with where to put the power of the air because I can also close this hole by lips and then you have a normal flute again so I think I'm going to get a small excursion to the start of the anaconda which is basically this type of flute I think it's a model in between the other flutes and the first moment where I thought it would be really nice to have a tubing going back in and there is some interruption somewhere with the water dividing the tube into a different part and I'm going to show that to you too so basically I should be talking German right now again for a while here there is also a intermediate step in the development of flutes to this anaconda I have here a flute that I thought to try out how it would be if this volume could be changed if the water was in it so that's like the first analogy for my water flute and also this one had a very unique sound that I would like to introduce I found it very interesting so that was for me a moment where I thought yes, there is something to get because I also went I also wanted to see that I might be able to develop a five tone in the air as well as the flute which also has a string looks a bit smaller and normally only has one slit I actually tried it out as you can see from which it sticks together and with each other yes, try it out I'll do that first and I'll do the other one I have to keep it short I think this flute is perhaps also known as sound and I have it a bit modeled in which I then printed different holes here and it sounds a bit louder but also not much yes, I find it interesting that you hear the four tones differently and they play together and through the shooting there is also a pattern that is not so predictable then I thought that you might be able to tune it by installing a windmill and bringing different holes to different places and maybe also there which will be discussed and a regular shooting to find your own axis that did not look so gigantic but we'll do that again because it has become a funny object and let's see if it works so you can hear very little the slits are not so ideal and the air is over which is why it is not thought to the end but for that I ask the workshop where we can all together the better ideas and the better tones I would be happy if something happens with each other so I will quickly explain this in English as well there was this moment around me and I thought of using that same bird song you just heard the tie whistle and I discovered that if you make different holes or different resonance bodies in the same body that you basically can make different tones with that little whistle that is basically played by the wind itself the wind that is entering and exiting due to that slit and maybe to come closely to an end I'm not sure exactly on the timing I have maybe there is 5 more minutes or you see 7 more minutes perfect I'm good so I will explain you 2 more things because one thing also coincident with the bottle I thought of making an adapter for any PET bottle that you then can use as a try out flute so for instance this one I already discovered it doesn't sound very well but earlier with a small bottle it did but of course after a couple of hours of printing you can actually make any bottle to a flute and you can start making holes and making water inside and trying out already little things and this one is also on the website you can download the STL file directly from the website you see in the screen and what else I wanted to show you is this pipe so the flute after the anaconda I thought I could improve it maybe or make another one that has another sound since I really dig the second hole the second way of moving the water in the tube I thought of why not making the tube going back up and make another flute end here and the water in between will be somewhere stuck and will make the two tones different and one has the second hole so in one side they can also blow in air in this case the tubing goes only till halfway so I need some more water and then I will play this as the end of this introduction to the workshop I hope you are inspired by these aerosol tones and tunes and you are loving to do some research with me to do have some fun with flutes and I think I kind of showed you almost everything this one is also funny I wanted to combine the two resonance body and flute in one and then by tilting it it would also make a different tone it didn't work out the way I wanted but that is research right you do experiments sometimes it really works but it doesn't and with this one I'm not sure exactly if it's great or not so let me get your opinion on that maybe if you send me something in the chat or on the email which is on the website as well you can always ask or propose or find even more designs if you are interested so there we go this is finally for you and I hope I see you on the 29th 8 o'clock I think we would all blow the flutes together and make a big session that would be a great adventure together I hope you find the printing files and everything in order if not please send me an email reach out and I go and research with you bye bye take care stay healthy