Hello, I am planning to appear for Grade 6,7,8 ABRSM Theory exams in the next two-three years. Additionally, I want to prepare for entrance exams(Theory part) for some European conservatories(bachelor).Please let me know few books which would suffice for these exams/Entrances. ABRSM Theory past papers would definitely help at a later stage. Any feedback on these books -ABC Of Harmony Book(A,B,C) by Roy WilkinsonABC of Theory - Grade 6, 7, 8 by Roy WilkinsonHarmony in practice - Anna Butterworth.Thanks in advance