Caught up in the sound, he spent three hours refining the melody, nearly forgetting his date was still there. When they finally left for the cinema at 9:00 PM, he saved the file under that simple timestamp: . Completing the Sound

Released in October 1998 and hitting its peak in the summer of 1999, the track was a massive commercial success.

When André Tanneberger sat down in his studio one evening in late 1998, he wasn’t trying to write a global anthem—he was just trying to impress a date. That casual demonstration led to "9 PM (Till I Come)," the track that would define a generation of trance music and become the first of its genre to top the UK charts. The "Accidental" Hook

It was the fifth best-selling single of 1999 in the UK and has sold nearly 900,000 copies there as of 2014.

The song’s signature is its "singing" guitar riff. While showing his companion how his equipment worked, Tanneberger stumbled upon a "meowing guitar" preset on a synthesizer. He began manipulating the pitch wheel to create a sliding, vocal-like melody.