NMM 2328.  Cymbals (rol mo), Tibet, 19th century. Two bronze cymbals with large central knobs. Thin leather handles strung through hole in center of knob. Diameter:  295 mm. Board of Trustees, 1977.

Rol mo are used in Tibetan music to provide the structural outline and rhythmic articulation in ritual chant, as well as to provide rhythmic impetus in the instrumental ensemble. However, Tibetan cymbal playing is not only viewed as useful for rhythmic and time-keeping purposes, but is a sensitive ritual in itself. The number of cymbal beats in a chant forms a complex mathematical structure with great symbolic value. Every beat, for example, consists of three parts:  the initial stroke, the accelerating pulse(s), and the concluding hum.

The rol mo are traditionally played in a roughly horizontal (diagonal) position, utilizing short vertical strokes. However, other playing positions can also be found in different monasteries that follow different traditions.

Literature:  Thomas E. Cross, Instruments of Burma, India, Nepal, Thailand and Tibet, The Shrine to Music Museum Catalog of the Collections, Vol. II, André P. Larson, editor (Vermillion: The Shrine to Music Museum, 1982), p. 29.

Thomas E. Cross, Instruments of Burma, India, Nepal, Thailand and Tibet, M.M. Thesis, University of South Dakota, May 1983, p. 73, plate XXVII.

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