Longest marathon playing keyboard / piano by an individual

According to Official Guinness Records,

The longest marathon playing keyboard/piano lasted 127 hr 8 min 38 sec and was achieved by Mrityunjay Sharma (India) in New Delhi, India, from 11 - 17 October 2015Mrityunjay Sharma (India) completed his attempt on a Korg proffesional arranger PA300 keyboard.

For a complete list of 2015 records, please visit 2015 Guinness Records in India.

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