Rekuhkara is a style of singing

Singing

Singing is the act of producing musical sounds with the voice, and augments regular speech by the use of both tonality and rhythm. One who sings is called a singer or vocalist. Singers perform music known as songs that can be sung either with or without accompaniment by musical instruments...

, related to Inuit throat singing

Inuit throat singing

Inuit throat singing or katajjaq, also known as the generic term overtone singing, is a form of musical performance uniquely found among the Inuit...

, that was practised by the Ainu

Ainu people

The , also called Aynu, Aino , and in historical texts Ezo , are indigenous people or groups in Japan and Russia. Historically they spoke the Ainu language and related varieties and lived in Hokkaidō, the Kuril Islands, and much of Sakhalin...

 until 1976 when the last practitioner died. The Sakhalin

Sakhalin

Sakhalin or Saghalien, is a large island in the North Pacific, lying between 45°50' and 54°24' N.It is part of Russia, and is Russia's largest island, and is administered as part of Sakhalin Oblast...

 spelling rekuxkara or the Japanese

Japanese language

is a language spoken by over 130 million people in Japan and in Japanese emigrant communities. It is a member of the Japonic language family, which has a number of proposed relationships with other languages, none of which has gained wide acceptance among historical linguists .Japanese is an...

 spelling rekukkara (レクッカラ in Katakana

Katakana

is a Japanese syllabary, one component of the Japanese writing system along with hiragana, kanji, and in some cases the Latin alphabet . The word katakana means "fragmentary kana", as the katakana scripts are derived from components of more complex kanji. Each kana represents one mora...

) can also be encountered.

The Ainu method involved two women facing each other, with one forming a tube with her hands and chanting into the oral cavity of her partner. The technique is essentially one where the "giver" provides the voice and the "receiver", holding her glottis

Glottis

The glottis is defined as the combination of the vocal folds and the space in between the folds .-Function:...

 closed, uses her vocal tract

Vocal tract

The vocal tract is the cavity in human beings and in animals where sound that is produced at the sound source is filtered....

to modulate the sound stream.