Tarihin ƙaho
Ƙaho yana nufin kayan kida na iska. Daga cikin tagulla, ita ce mafi girma a cikin sauti. Abubuwan da ake yin bututu shine jan ƙarfe ko tagulla, wani lokacin ana yin su da azurfa da sauran ƙarfe. An san kayan aiki irin na bututu ga ɗan adam tun zamanin da. Tuni a cikin zamanin da, an san fasahar yin bututu daga takarda ɗaya na karfe. A cikin ƙasashe na duniyar duniyar da da yawa daga baya, tsawon ƙarni da yawa, bututu ya taka rawar siginar kayan aiki. A cikin tsakiyar zamanai, akwai wani matsayi na musamman na mai busa ƙaho a cikin sojojin, wanda, ta amfani da sigina, ya aika da umarnin kwamandan ga rundunonin sojan da suke a nesa mai nisa. An yi zaɓe na musamman na mutane waɗanda daga baya aka koya musu ƙaho. A cikin garuruwan akwai masu busa ƙaho na hasumiya waɗanda, da alamarsu, suna sanar da jama'ar gari game da gabatowar wata ƙungiya tare da babban mutum, canjin lokacin rana, gabatowar sojojin abokan gaba, wuta ko wasu abubuwan da suka faru. Babu wata gasa ta jarumta, biki, muzaharar biki da za ta iya yi ba tare da busar ƙaho ba, wanda ke nuna alamar fara bikin.
Zamanin zinariya na ƙaho
A cikin Renaissance, fasaha na yin bututu ya zama mafi cikakke, sha'awar masu yin waƙa a cikin wannan kayan aiki ya girma, kuma an haɗa sassan bututu a cikin ƙungiyar makaɗa. Yawancin masana sunyi la'akari da lokacin Baroque a matsayin shekarun zinariya don kayan aiki. A cikin zamanin classicism, melodic, romantic Lines zo a gaba, na halitta bututu tafi da nisa a cikin inuwa. 
Kuma kawai a cikin karni na 20, godiya ga ingantaccen ƙirar kayan aiki, fasaha mai ban mamaki na masu busa ƙaho, ƙaho yakan yi aiki a matsayin kayan aiki na solo a cikin makada. Yana ba ƙungiyar makaɗa daɗaɗɗen ban mamaki. Godiya ga timbre mai haske na kayan aikin, an fara amfani da shi a jazz, ska, pop orchestra, da sauran nau'ikan nau'ikan. Duk duniya ta san sunayen fitattun masu busa ƙaho, waɗanda ƙwarewarsu za ta girgiza rayukan ɗan adam koyaushe. Daga cikin su: ƙwararren ƙaho da vocalist Louis Armstrong, da almara Andre Maurice, fitaccen mai buga kaho na Rasha Timofey Dokshitser, ban mamaki Canadian kaho master Jenes Lindemann, virtuoso dan wasa Sergei Nakaryakov da yawa wasu.
Na'urar da nau'ikan bututu
Ainihin, bututu mai tsayi ne, bututun silinda wanda aka lanƙwasa cikin siffa mai tsayi mai tsayi don ƙaranci. Gaskiya ne, a bakin bakin ya dan kunkuntar, a kararrawa ya fadada. Lokacin kera bututu, yana da matukar muhimmanci a lissafta daidai matakin fadada soket da tsawon bututu. 
Don rage sautin, akwai bawuloli guda uku, a wasu nau'ikan (piccolo trumpet) - hudu. Tsarin bawul ɗin yana ba ku damar canza tsayin ginshiƙin iska a cikin bututu, wanda, tare da canji a cikin matsayi na lebe, yana ba ku damar samun jituwa masu jituwa. Lokacin fitar da sauti, halayen wasa na bakin magana suna da mahimmanci. Lokacin kunna ƙaho, ana goyan bayan kayan aiki a hagu, ana danna bawuloli tare da hannun dama. Don haka, ana kiran bututun kayan aiki na hannun dama. Yawancin makada a yau suna buga ƙaho B-lebur, tsayin ƙafa 4,5. Daga cikin ire-iren su akwai: alto trumpet, wanda ba kasafai ake amfani da shi a yau ba; rashin amfani tun tsakiyar karni na 20 bass; ƙananan (piccolo trumpet), wanda ke fuskantar sabon tashin hankali a yau.
