Javanese Gamelan

Javanese gamelan is the bronze-percussion ensemble tradition of Central Java, built around the courts of Yogyakarta and Surakarta. The ensemble divides into balungan (skeletal melody instruments — saron and slenthem keyed metallophones), elaborating instruments (bonang, gambang, gender, suling flute, rebab fiddle, female sindhèn vocalist) and punctuating gongs (kenong, kempul, kethuk and the great low gong ageng). Pieces (gendhing) are organized in cyclic structures marked by the gong ageng, with the cycle subdivided by progressively smaller gongs. Two tuning systems coexist — slendro (five tones) and pelog (seven tones, with five-tone modes drawn from it) — neither of which maps to western equal temperament. Tempos move slowly compared to Balinese gamelan, with deeper meditative feel.

Javanese gamelan traces to court and temple performance from at least the eighth or ninth century, with the Borobudur and Prambanan temple reliefs depicting recognizable ensemble instruments. The classical court repertoire was systematized at the Yogyakarta and Surakarta keraton (royal palaces) from the eighteenth century onward and remains performed there today. The form influenced western composers through the Paris Universal Exposition of 1889, where the Javanese gamelan ensemble had a transformative effect on Claude Debussy — its cyclic time, modal pitch and bell-like timbres show in his subsequent piano writing. American composers Lou Harrison, Henry Cowell and later Steve Reich studied Javanese gamelan directly.

The gong ageng's deep, slow strokes — the lowest, most spaced-out punctuation in the ensemble — define the cycle. Smaller punctuating gongs subdivide it. The saron keyed metallophones play the core melody (balungan) in a strict steady pulse, while elaborating instruments add faster running figures and the female vocalist sings melismatic phrases that float partly outside the metric grid.

Recordings by the Yogyakarta court ensemble (Kraton Yogyakarta Hadiningrat) or the Solonese (Surakarta) ensemble give the canonical sound. The Smithsonian Folkways anthology 'Music of Java' and the Nonesuch Explorer Series recordings of the 1970s are accessible western releases.

Debussy heard a Javanese gamelan at the 1889 Paris Exposition and the experience reportedly fed directly into his piano writing — the pentatonic, bell-like passages of 'Pagodes' (Estampes, 1903) and parts of 'La Mer' (1905) are widely traced to that encounter. The colonial-exposition context of the encounter is now a familiar critical theme in the literature.