Tango is what kind of music
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Tango is a style music that originated in Argentina and Uruguay, influenced by both regional folk music and European classical dance music. Both Uruguayan and Argentine tango dance music is composed in the easily dancable time signatures of 4/4 and 2/4. Tango music can be instrumental, or it can feature a vocalist.

your spelling is a little off : ]

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]