Leon McCawley embarks on a sonata marathon between the 15 - 17 April 2011 as part of week 4 of Mozart Unwrapped a year long series featuring 45 concerts of musical genius throughout 2011 at Kings Place. See what he had to say about it! More on week 4: http://bit.ly/fio3aQ and Mozart Unwrapped: http://bit.ly/gH1d5e