Contraforte Reed Dimensions

Contraforte Reed

This isn’t an IDRS journal but I think it is still an appropriate place to post reed dimensions. I have only had a few months with the contraforte so far I have come to two styles of reed. One wider and one narrower, the wider shape is a real robust contraforte sound and the narrow shape is a simpler contrabassoon sound.

The wide shape is using the Reiger contraforte shape (23.25mm wide) and formed on a Reiger contraforte mandrel.

160mm cane

35mm blade (collar to tip)

45mm tube (collar to end)

5mm from first wire to second wire

The narrow reed is shaped on a Reiger K1 contrabassoon shape, it’s important to use a fold-over shaper for this since I still use 160mm cane. 160mm cane will not fit into a contrabassoon straight shaper which is meant to hold 150mm cane, but on a fold over shaper the tube continues further. Using this extra tube length also allows the reed to be formed on a contraforte mandrel. Besides using a different shape all of the dimensions are the same.

160mm cane

35mm blade (collar to tip)

45mm tube (collar to end)

5mm from first wire to second wire

contraforte reed

The narrow reed is essential to making the CF work in every situation. This style produces a simple, dryer sound, requiring less air, and achieves an easy pianissimo response.

the wide reed is now available on kingbassoonreeds.com

 

 

 

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