[2] A two year old Harry Waters is heard in the original recording of "Goodbye Blue Sky" on Pink Floyd's 1979 album The Wall.

Harry and India Waters are credited as "children in the garden" in the liner notes of Roger Waters' 1987 solo album Radio KAOS[4] Waters joined his father's touring band in 2002,[5] replacing keyboardist Jon Carin on the In the Flesh tour; he later playing alongside Carin since The Dark Side of the Moon Live in 2006.

[9] On 19 June 2011, Waters played a Pink Floyd song "In the Flesh" (from The Wall) with Primus during the band's concert at the Effenaar in Eindhoven.

In 2023, he joined Colonel Les Claypool's Fearless Flying Frog Brigade on their "Summer of Green" touring, playing Pink Floyd's 1977 album Animals each night.

Later in the year, he agreed to perform three shows with English tribute band Brit Floyd.