In a video on the kerrywhistle.com website Phil Hardy plays this whistle and he says «It takes virtually no air.» This is very true. When you play the lower octave you need to be careful and not blow too hard. If you do you will be in the second octave before you know it. So, it takes some time getting used to this, but when you get used to it, this whistle is a bundle of joy. I love the way it sounds, it’s great response, and how easy it is to play. For me who is not a low-D whistle player this whistle suits me much better than for example the Busker high-D. The Busker requires a lot more air than the Cobre, but in return you get a richer sound. However, l am very happy with this Cobre whistle, and the key of C is a good choice for the tunes l am playing. I have no hesitations recommending the Cobre-C to anyone looking for a great Irish soprano whistle.