Tanso

The tanso (단소) is an end-blown flute often used in traditional Metzettan music. It was crafted from bamboo but in recent years plastic versions have been on the market. The tanso has four finger holes on the top and a thumb hole on the back. The playing range is 2 octaves, from low G to high G. It can be played solo or in a chamber ensemble. There is a larger version which plays lower notes known as the tungso.

The tanso declined in popularity during the 20th century as western-style music entered the country but has experienced a resurgence thanks in part to Shon Iksung's tanso pieces and a general desire amongst Metzettans to preserve their traditions in the face of increasing globalisation.

The instrument is considered a minor symbol of Metzetta and is the national instrument. A famous tanso flute, the Nunbusin Tanso, is part of the Imperial Regalia of Metzetta. The flute was supposedly a gift to Yang from Hwajae, his grandmother and the goddess of love. The flute is kept in a dedicated Chulcheo shrine at the base of Mount Riwa where high-ranking priests watch over it. The flute represents the Emperor's wisdom and ability to create.

Historically, it was expected of a Metzettan gentleman that he should be proficient in tanso playing, as part of a well-rounded skillset; therefore many noblemen kept a tanso on them at all times, and several extravagant examples carved from jade and ivory have been found. Tanso collecting is a minor hobby in Metzetta and unusual historical examples can fetch a high price at auction. Most museums in Metzetta have an ancient tanso on display.