The thon and rammana (Khmer: ស្គរថូននិងស្គររមនា; Thai: โทนรำมะนา, pronounced [tʰoːn ram.ma.naː]) are hand drums played as a pair in Khmer and Thai classical music.

It consists of two drums: the thon (Khmer: ស្គរថូន;Thai: โทน), a goblet drum with a ceramic or wooden body and the rammana (Khmer: ស្គររមនា;Thai: รำมะนา), a small rebana-typed frame drum or tambourine.

Earlier in the 20th century, the thon and rammana were sometimes played separately.

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