Reed aerophone
      
Reed aerophones is one of the categories of musical instruments found in the Hornbostel-Sachs system of musical instrument classification. In order to produce sound with these Aerophones the player's breath is directed against a lamella or pair of lamellae which periodically interrupt the airflow and cause the air to be set in motion.
422 Reed aerophones
- 422.1 Double reed instruments - There are two lamellae which beat against one another.
- 422.11 (Single) oboes.
- 422.111 With cylindrical bore.
 
 
 
- 422.111.1 Without fingerholes.
 
- 422.111.2 With fingerholes.
 
- 422.112 With conical bore.
 
- 422.12 Sets of oboes.
- 422.121 With cylindrical bore.
 
- 422.122 With conical bore.
 
 
- 422.2 	Single reed instruments - The pipe has a single 'reed' consisting of a percussion lamella.
- 422.21 (Single) clarinets.
- 422.211 With cylindrical bore.
 
 
 
- 422.211.1 Without fingerholes.
 
- 422.211.2 With fingerholes.
 
- 422.212 With conical bore.
 
- 422.22 Sets of clarinets.
 
- 422.3 Reedpipes with free reeds - The reed vibrates through [at] a closely fitted frame. There must be fingerholes, otherwise the instrument belongs to the free reeds 412.13.
 
- 422.31 Single pipes with free reed.
 
- 422.32 Double pipes with free reeds.
 
References
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  |  41. Free | | 411. Displacement |  | 
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  |  | 412. Interruptive | 
- 412.1. Idiophonic
- 412.11. Concussion
 
- 412.12. Percussion
 
- 412.13. Free reed
 
- 412.1
 
  
- 412.2. Non-idiophonic
- 412.21 Rotating
 
- 412.22 Whirling
 
   
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  |  | 413. Plosive |  | 
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  |  42. Non- free | | 421. Flute | 
- 421.1. Non-fipple
 
- 421.2. Fipple
- 421.21. External
 
- 421.22. Internal
 
   
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  |  | 422. Reed | 
- 422.1. Double reed
- 422.11. Single
 
- 422.12. Multiple
 
  
- 422.2. Single reed
- 422.21. Single
 
- 422.22. Multiple
 
  
- 422.3. Free reed
- 422.31. Single
 
- 422.32. Multiple
 
   
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  |  | 423. Brass |  | 
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