The Indonesian formation Krakatau makes music that is based on the ancient Karawitan Gamelan microtones, called s´lendo – the traditional music of Java, Bali and Sunda. Krakatau, named after the most notorious volcano in Indonesia, mixes these ancient ethnical rhythms with Western diatonic pop and jazz elements. This is done with many typical traditional Indonesian instruments coming from various islands, such as the tarompet, suling, ceng-ceng and bonang, but the band also includes keyboards, bass and drums. Krakatau, in which keyboard player Dwiki Dharmawan plays an important part, was founded in 1985 in Bandung. Since then the band has made various successful albums and made furore at a.o. the Jakarta Jazz Festival.