In 2011 the population of the town where the band with a compilation album called 24 Carat Purple were formed was about 26,000.
Deep Purple are an English rock band formed in Hertford in 1968. 
 Forming a civil parish, the 2011 census put the population of Hertford at about 26,000. 
24 Carat Purple is the first compilation album of the hard rock band Deep Purple released worldwide on their own record company and the third in a long line of compilation albums. 
