This group recorded the original and important album Battle of the Field . Carthy was part of the new and different band Brass Monkey which mixed brass instruments , Carthy 's guitar and mandolin and John Kirkpatrick 's accordion , melodeon and concertina . He has sung with The Watersons since 1972 , was twice a member of the UK electric folk group Steeleye Span , was a member of the Albion Country Band 1973 line-up , with members from the Fairport Convention family and John Kirkpatrick , that recorded the Battle of the Field album , and was part of the innovative Brass Monkey ensemble , which mixed a range of brass instruments with Carthy 's guitar and mandolin and John Kirkpatrick 's accordion , melodeon and concertina .