Four church choirs are competing in a choral competition and perform hymns from different composers: 1. The St Andrew’s choir has four fewer members than St Mary’s choir. 2. The St Peter’s choir is larger than the choir that has chosen a hymn by John Newton. 3. The four performances are by St Mary’s choir, the choir with 12 members and the choirs that sing hymns written by Newton or Watts. 4. The St Andrew’s choir are singing Amazing Grace by John Newton. 5. Both the St Mary’s choir and the choir singing a Wesleyan hymn have more than 10 members. Using these clues and the grid below, can you work out the size of each choir and which hymn writer they have chosen?