The instruments have a divided comb made of plastic. When drawing or blowing, two reeds at a time are caused to vibrate.

They are tuned with an interval of exactly one octave apart . To minimize air loss and to increase the volume there are additional windsavers built in. The result is a full and powerful sound.

• 10 discrete holes 40 reeds, 2x2 reeds per channel, half-valved
• Body discrete, plastic
• Covers stainless steel,
• Reedplates 0,9mm,
• Weight Concerto 94g 3.316 Oz)
• Measures: 125x30x27mm (4.9, x 1.18 x1.06 inches)