History
The earliest known description of ''ranat'' in Thailand ''Ranat ek'' was originally an instrument called '' Krap''. A pair of ''krap'' was used to keep the rhythm in ensembles. Later, ''krap'' were put into a series. However, the tones when the bars were struck were out of tune. Then it was decided to make a series of ''krap'' on two tracks to support it. After the instrument makers gained some experience and knowledge, the ''krap'' were made in a series of sizes with a track to hold them together making the tone clearer. To make them into a series, a heavy string was threaded through holes made near the ends of the krap. The krap were placed near each other on this cord and the entire “keyboard” was hung on a supporting stand. Later on, the keyboard was improved using krap and beeswax with lead shavings attached underneath each krap to improve the tone. This whole instrument was called “''ranat''” and the krap which make up the keyboard are called “''luk ranat''”. The whole series of krap or the keyboard is called “''pern''”. At first the keys of ranat were made of two kinds of bamboo, Dendrocalamus Nees ('' Dendrocalamus Nees''; Thai: ไผ่ตง; ''phai tong''), and Indian Timber Bamboo ('' Bambusa tulda''; Thai: ไผ่บง; ''phai bong''). Later on, different types of hardwood were used, such as rosewood ('' Dalbergia oliveri''; ; ''mai ching chan''), Lakoochaand ('' Artocarpus lacucha''; Thai: ไม้มะหาด; ''mai mahat'') or Siamese Rosewood ('' Dalbergia cochinchinensis''; Thai: ไม้พะยูง; ''mai pa yung''). Normally Indian timber bamboo is preferred because of its tone. The support of the keyboard is shaped like a Thai riverboat, curving at each end. The first Thai instrument ensembles only used one ''ranat'', and this had fewer keys than the ''ranat'' nowadays. More and more keys were added until the ''ranat'' became too large for one stand to hold. So a second ''ranat'' with lower toned keys was created. This was called ranat thum, with the original ''ranat'' with the higher-toned keys being called ''ranat ek''.Structure
The modern ''ranat ek'' model has 22 keys. The lowest-toned key is 38 cm long, 5 cm wide and 1.5 cm thick. The keys decrease in size and become thicker as the tones go higher. The highest-toned key is 30 cm long.Tuning
Each octave is divided into seven equal parts, which results in complex musical ratios but easy transposition between keys (analogous to the benefits and drawbacks of Western 12-pitchReferences
External links
See also
* Ranat * Ranat thum *