Warburton GAP Chek

GAP Check for Trumpet

• Measures the distance from the end of the mouthpiece to the beginning of the mouth pipe (GAP)
• Developed by Ken Titmus
• The GAP measurement allows an estimate of which mouthpiece fits on a trumpet
• Too large of a GAP makes the lower register seem stuffy and the upper register may reach a "wall"
• Too small of a GAP leaves the lower register too open and leads to poor definition of notes above C```
• Missing resistance causes the upper register to become airy or washed out