Piphat (rong) lao krathop mai ปี่พาทย์ (ร้อง) ลาวกระทบไม้

Thai classical is the courtly and theatrical art music of Thailand, crystallizing in the Sukhothai and Ayutthaya kingdoms and flourishing in Bangkok’s Rattanakosin era. It is performed by standardized ensembles (piphat, khruang sai, and mahori) that accompany classical dance-drama (khon, lakhon), rituals, and concerts. The music features a seven-tone, roughly equidistant heptatonic tuning, heterophonic textures (each instrument elaborating the same core melody at different densities), and cyclic rhythms articulated by small cymbals (ching) and drums (taphon, klawng). Signature timbres include the pi nai (quadruple-reed oboe), wooden xylophones (ranat ek/thum), gong-circles (khong wong yai/lek), spike fiddles (saw duang, saw u, saw sam sai), the hammered dulcimer (khim), the zither (jakhe), and flutes (khlui). Repertoire consists of named pieces and suites (thao) performed at three structural tempo levels (sam chan → song chan → chan diao), moving from expansive elaboration toward concise, driving climaxes.