Mus. [f. BASS sb.5] An oblong piece of wood fixed lengthwise within the belly of various musical instruments of the violin type, to strengthen it against the pressure of the left foot of the bridge.

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1838.  Penny Mag., 30 June. The bar of harmony or bass-bar, was placed under the middle of the instrument.

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1848.  J. Bishop, trans. Otto’s Violin, iv. 39. The same difficulty in bringing out the tone arises if the bass-bar is placed too far inwards, instead of being more under the foot of the bridge.

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