Contributors to the new anthology include (clockwise from top left): Malcolm Archer, Philip Moore, Esther Bersweden, and Miriam Reveley.   Organist and composer, Philip Moore, RCO President from 2015-2017, celebrated his 80th birthday last month.  And appropriately, his piece Fiesta has just been published in an anthology of new music, Something to Celebrate, from Encore Publications. Something to Celebrate is an anthology of six original pieces for organ, all in a jubilant mood. Beside Philip Moore, the composers include Malcolm Archer FRCO, David Pritchard FRCO, Esther Bersweden, Alison Willis - and Miriam Reveley, who won the Limpus Prize at FRCO…