The street known as Tin Pan Alley - a focal point of the British music industry - now has a hi-tech plaque marking its significance.
Sixties pop singer Donovan gave a performance of a song that he had written especially 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 hi-tech 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.