Sixties pop singer Donovan, born in Maryhill, Glasgow, and famous for Hurdy Gurdy Man among a string of hits, gave a performance of Tin Pan Alley - "Where the words and music meet", a song he had written for the occasion - outside the Giaconda Cafe in Denmark Street in London.
Industry figures including former Radio 1 DJ Mike Read gathered for the unveiling of a blue plaque containing audio, video and a 10,000-word wiki-style history of music. The plaque reads: "This street was 'Tin Pan Alley' 1911-1992. Home of the British Publishers and Songwriters and their meeting place The Giaconda."
The street has been a popular location for writers, artists, pluggers and hustlers. The Giaconda Cafe was once graced by the likes of David Bowie, Jimi Hendrix, Marc Bolan and Elton John.