Croydon Minster is inviting all Choirmasters and Music Directors to join them in their Hymnathon on 1st and 2nd July, when they will be singing non-stop through the entire New English Hymnal, to support the organ appeal.  Only 60% of the celebrated and much-loved 1869 William Hill instrument at Croydon Minster is currently functional, after 40 years without refurbishment. 'If we lose it altogether,' says Colin Boswell, Vicar of Croydon, 'we run the risk of also losing, possibly for ever, a major choral training foundation for young people, with more than 60 choristers currently.  With no instrument to accompany them,…