Longest concert by a solo artist

The longest performance by a solo artist lasted 501 hours and was achieved by Kuzhalmannam Ramakrishnan (India) at the Rhythm Therapy Hall, Nandavanam Hospital, Ottapalam, Kerala, India, on 5-26 July 2009

This record is the overall category for music marathons – Kuzhalmannam Ramakrishnan also holds the record for longest marathon hand drumming.