11. The position of these tone holes prohibits the instrument from overblowing , limiting its range to only twelve notes. 12. This is a perfect example of theserialcomma overblowing a minute situation which can be resolved with a simple request. 13. I look at those people and see how the human spirit drives them forward and here I was overblowing what I had. 14. But a trade group representing manufacturers of calcium supplements said the council is overblowing the effect of lead levels in existing products. 15. Because it involves both reeds in the chamber, overblowing is not possible on fully valved harmonicas such as the button chromatic. 16. The limited fallout has led to defensive comments from some experts and officials, worried they would be accused of overblowing the problem. 17. By blowing hard in some musical wind instruments Stage I jumps to Stage II; it is called " overblowing ". 18. One series of harmonics is achieved by overblowing with the end of the tube open and another is achieved with the end closed. 19. By applying pressure with the arm the player can start and control the chanter and drones, as well as the overblowing function. 20. This is part of the normal method of obtaining higher notes in wind instruments, where it is called " overblowing ".