Pictures by Enda Madden Review by Howard Keogh There is an air of anticipation as Download festival celebrates its 20-year anniversary. Continuing the tradition of music festivals in Donington, Download follows the legacy of the Monsters of Rock festival which first started in 1980. Since its inception in 2003, Download has gone from strength to strength, starting as a two-day event with 2 stages, later evolving to three stages in 2004, before adding a third day in 2005. This year the 20-year celebration sees the addition of a fourth day with the novel idea of a double headline provided by titans Metallica which subsequently sells out fully, well in advance.…