„I was really cautious when I first bought my precious ebony tuning plug, but it has been a great help since I had it. This revolutionary head enhanced the sound of my instrument to an extent which was noticeable even for my audience. The overall sound is shinier and fuller. Though we still have to practice a lot, with the help of this improvement basics like phonation are much easier, in any register. It improves the overall quality, and it is easier to play in the third register. And so on. To sum it up, it has become an even greater pleasure to play music. I give my highest recommendation, without any doubt.”