During our demo, music was streamed from the other end of our conference call to the Continental GT and it sounded like we were spinning the tracks ourselves -- crystal clear with no distortion or static to be heard.

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Demo from Xander Soren, director of music marketing.

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In a video demo, a person controls the playback of music on a laptop.

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He has recording facilities at his home and hopes his demo CDs and live appearances will attract interest from music producers.

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It also features rap mogul Sean Combs, otherwise known as Diddy, who finally agrees to listen to a demo of the actor's hip-hop music.

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Instead of a head-long assault on the industry, they burned demo CD's to give out at gigs and put music up on their website to create a groundswell of fans.

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While it was at Radio City Music Hall, it felt like a Consumer Electronics Show demo writ very large.

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Chalk up another great advance in the music industry to the record labels, who are already paid plenty to reject artists who submit demo tapes for free.

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If you have a demo CD of your best tracks then let us have a copy along with a written biography telling us about your music.

BBC: Martin Winch