K. P. H. Notoprojo, also known as Tjokrowasito, Wasitodipuro, Wasitodiningrat, among other names (March 17, 1909 – August 30, 2007), was one of the most highly respected performers of Javanese gamelan. He led the Paku Alaman palace gamelan as well as the gamelan for the Radio Republik Indonesia Yogyakarta, and taught gamelan in universities around the world. He was also a noted composer and rebab performer.
On March 9, 2004, he received the Nugraha Bhakti Musik Indonesia Award.
His official name changed several times, corresponding to honors received during his lifetime. He was born in Yogyakarta, Central Java, as Wasi Jolodoro. He was first called Tjokrowasito (Cokrowasito in the new orthography); and known familiarly as Pak Tjokro (Cokro). As he became musically proficient, his peers called him Ki Tjokrowasito (Ki is an unofficial title of respect). In the 1960s, the Paku Alaman Palace honored him with the name K.R.T. Wasitodipuro, or "Wasito of the palace; and the additional honorifics K.R.T., or Kanjeng Raden Tumenggung. Later, he was honored again to become K.R.T. Wasitodiningrat, "Wasito of the world." In 2001 he was recognized officially as the biological son of Paku Alam VII, and half-brother of the Paku Alam VIII. He was then given a title similar to a prince: K. P. H. Notoprojo, or Kanjeng Pangeran Haryo, which remained his name until the end of his life.
He was born in Yogyakarta, Java. He grew up in the Paku Alaman palace, and began studying gamelan at age five from his legal father, R.W. Padmowinangum, who led the palace gamelan. His formal education was at Taman Siswa secondary school, enriched by studies at the palace.
In addition to playing in the court gamelan, he played with other famous gamelan groups, such as Daya Pradangga, and served as gamelan musical director at the radio station MAVRO (Mataramsche Vereeniging Radio Omroep) from 1934, Radio Hosokyoku from 1942-1945 during the Japanese occupation of Indonesia, and RRI Yogyakarta after independence. He had the opportunity to teach karawitan abroad beginning in 1953, and worked in several countries. He taught at the Konservatori Tari Indonesia and Akademi Seni Tari Indonesia, and founded a school for the study of vocal music, Pusat Olah Vokal Wasitodipuro.