Hornbostel - Sachs
Heterochord raft zithers
One or more strings are stretched between fixed points. The instrument consists of a rigid string bearer, or of a rigid string bearer with a resonator which is not integral and can be detached without destroying the sound-producing apparatus. The string bearer is composed of canes tied together in the manner of a raft. The strings are of separate material from the string bearer. Sounded by the bare fingers.
Heterochord raft zithers sounded by the bare fingers