An improved device for providing the magic touch effect during a double repetition in an upright piano wherein the device comprises a plurality of keys swingably mounted on a keyboard frame and supporting a suitably inclined slanted drive element, which can be screw adjusted and is intercoupled to a slanted swinging arm that operates as a control lever that is pivoted to an abruptly clockwise downstream slanted main bridge having an escapement lever coupled to a butt roller of a hammer, pivoted to a first pillar element, that supports adjusting buttons for adjusting a first and second escapements. The main bridge assembly is coupled to a second pillar element, that is pivoted to the lever of the second escapement.

 
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