Friday, 17 September 2010

The Horn on Stamp.

The Spain Postal Administration issued the aero-phones musical instrument series on stamp but not in once time. On 1st of July 2010, one of the above stamp series issued is the horn, a wind-brass instrument belonging to the family of the aero-phones. The horn depicted in the stamp is a 20th century piece belonging to the musical instrument collection of the Museo Interactivo de la Música de Málaga (MIMMA).

The horn is a circular shaped instrument with a 35cm diameter. There are a mouthpiece and valves in the upper part and a conical bore that gradually becomes wider. The three or four valves, usually rotary, are operated with the left hand, to route the air into extra tubing to change the pitch. In its central part, there are also additional screws. The sound of the horn is produced by the vibration of the lips in the mouthpiece and by blowing air into the instrument. More lip tension and faster air produces higher notes.

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