Mark Mallman to perform 7-day marathon song

Mark Mallman loves a good challenge.

The Minneapolis musician is known for his "music marathons" in which he plays for hours on end. His last marathon in 2010 lasted three days - without any breaks - and featured 576-pages of lyrics and 110 guest musicians.

Now he's looking to up the ante with "Marathon 4: Road Rogue." Mallman plans to drive across country in seven days, from New York City to Los Angeles (with an obligatory stop in Minneapolis), playing music all the while.

This time he's going to allow himself some sleep (thank goodness!), but the song will continue through the night as his heart rate and brainwaves control his synthesizer.

The entire, 150-plus hour event will be broadcast on his website.

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