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I read Oliver Sachs Musicophilia: http://www.amazon.co.uk/Musicophilia-Tales-Music-Oliver-Sack...

In it he points out how some people with Alzheimers or other degenerative brain damage can use familiar music to co-ordinate a sort of 'flow' a rhythm of activity.

When I am coding it is like this. I can put on a familiar record that know back to front and then suddenly it is over and I haven't heard any of it but it has marshalled my flow for me.

Put on an unfamiliar playlist or a 'radio' style thing from last.fm (or the radio even) where I don't know what is going to be played next) and it trashes my flow.

So to get stuff out of Spotify I have to make and learn playlists (as it trashes the order of all the LP's which I have burnt into my head from years of listening to them on vinyl....)

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