The band mixes influences from musical and folklore traditions from the Indonesian archipelago with experimental music. The band neo-tribal sound has been described to mix "punk attitude" with "avant-garde aesthetics". According to critics, Senyawa has managed to "manage to embody the aural flavours of Javanese music while exploring the framework of experimental music practice, pushing the boundaries of both traditions" to create a sound that is "thoroughly out of this world."
Shabara provides his extended vocal techniques to Senyawa. The band's lyrics are in various languages of Indonesia, including Sulawesian, Javanese and Bahasa Indonesia. Senyawa's music is provided by Suryadi's self-built musical instruments made from bamboo and traditional agricultural tools from rural Indonesia.
Senyawa has been performing extensively in Asia, Australia and Europe. They have collaborated with notable musicians such as Lucas Abela, Yasuke Akai, Jon Sass, Damo Suzuki, Jerome Cooper, Keiji Haino, Melt Banana, Tatsuya Yoshida, Charles Cohen, David Shea and Kazuhisa Uchihashi.