Tro Khmer

The Tro Khmer, also known simply as Tro, is a traditional bowed string instrument of Cambodia. It is a member of the lute family and is distinguished by its coconut shell body covered with snakeskin or other animal hide. The neck is typically made of hardwood and supports unfretted strings, usually three in number. Traditionally, the strings were made of silk, but modern instruments often use metal strings.

The Tro Khmer is played vertically, resting on the knee or floor. The bow, typically made of bamboo and strung with horsehair, is passed between the strings to produce sound. The musician controls the pitch by pressing the strings against the neck.

The Tro Khmer plays a significant role in Cambodian classical music, folk music, and religious ceremonies. It is often featured in ensembles accompanying dance performances and shadow puppet theater (Sbek Thom and Sbek Touch). While the instrument's specific role can vary depending on the genre and ensemble, it generally contributes to the melodic and harmonic structure of the music.

Different variations of the Tro exist throughout Southeast Asia, including the Tro Sau and Tro Ou, which are related instruments also found in Cambodian musical traditions.