Balclutha resident Mr Scott (82) was among about 100 past and present members attending a weekend of anniversary events.
His own band career had been "unusual''. He began as a piper in 1953, before becoming drum major about 25 years later.
"I got a bit sick of the piping, and the job came up so that's what I did. It worked out pretty well.''
Given its Scottish origins, Balclutha was relatively slow to establish a pipe band, its centenary booklet suggests.
A Clutha Leader report of the time says a Mr E. Wildey moved for the formation of the band at a public meeting on August 5, 1919: "There [is] no music so stirring as that of the pipes, the music of [our] forefathers. A pipe band should have been formed here long ago.''