12 part; s = 30.1230.30 Grandsire Single.
a = s1.s2.s3.s4.s5.s6.s7.s8.s9.s10.s11.s12.s13.s14.s15.s16.s17.s19.s20.s21.s22.s23.s24.s25.s26.s27.s28.s29.s30.s31.s32.s33.s34.s36.s37.s38.s39.s40.s41.s42.s43.s44.s45.s46.s47.s48.s49.s50
3 56s (0f,3b), 48 4-bell runs (24f,24b), Backrounds, 75 09s at back.