Crooks for invention horn

The horn crooks fit the invention horns after Courtois and Raoux as well as the baroque horn after Eichentopf. This means that all crooks except for the D Coupler not mentioned here are compatible with each other.

For the Bb-basso key, either the 4-winded one-piece crook can be used or the coupler in combination with the C-basso crook.

C-pin

Bb-alto-crook

1 winding

A-alto-crook

1 winding

Ab-alto-crook

1 winding

G-crook

1 winding

Gb crook (= F#)

2 windings

F crook

2 windings

E-crook

2 windings

Eb-crook

2 windings

D-crook

3 windings

Db-crook

3 windings

C-basso-crook

3 windings

Cb-basso-crook (= B)

4 windings

Bb-basso-crook

4 windings

Bb-basso Coupler

Combined with C-basso crook, results in Bb-basso key

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