These musical instruments are called gambang kromong, which is also the name of the music genre. They were used to accompany songs of the Lagu Pobin repertoire. The oldest repertoire can be traced back to traditional songs from Fujian province of southern China. The musical notation is in Chinese characters (Kwa 2012: 320). A later genre, the Dalem songs, were sung in a Chinese-Malay verse form of pantun, in a calm and soothing rhythm (Kwa 2012: 321-322). The next repertoire that developed was much more energetic and were called Sayur songs. These melodies were suitable for dancing, and therefore popular at weddings. Female Sundanese singers and dancers, called wayang cokèk, were hired to entertain the wedding guests and dance along with them. The gambang kromong ensemble is a mixture of Indonesian, Chinese, and nowadays often also European instruments, such as an electronic keyboard. The Indonesian instruments, which gives the ensemble its name, are the gambang, a xylophone with 18 wooden keys, and kromong, ten kettle gongs on a wooden stand. In this ensemble the kromong is either missing or was never part of it. Explanation for this could be that when this form of music was brought from Fujian to Batavia in presumably the seventeenth and eighteenth centuries, the instruments originally consisted of Chinese fiddles, Chinese flutes, and Indonesian gambang. Only around 1880 drums, gongs, and kromong were added (Yampolsky 1991: 3). The other instruments in this set are clarinets, gong chimes, drums, flutes, and a two-snare violin, all of Chinese origin. The wooden parts of the instruments are painted in red and gold, and are carved with dragon motifs.