The metronome mark gives a useful indication of the style and feel of a piece as intended by the composer. It is not something to follow slavishly, but an awareness of the suggested tempo will help candidates to achieve a convincing interpretation. The minimum scale speeds are published as a guide only. The manner in which ornaments are realised is entirely at the discretion of the teacher and candidate. Associated Board publications include authentically appropriate ornamentation as part of a policy to present the most scholarly edition, from which teachers can then choose their own approach.
Ornamentation is just one aspect of the whole performance.
Whilst the accurate and stylistic execution of ornaments is something to be aimed for, it is quite possible to gain high marks playing simplified versions of the suggested ornamentation, especially in pieces with a faster tempo. Examiners are open-minded about ornamentation and would rather hear a safe performance with a secure pulse and good phrasing than one that is hindered, in rhythm and shape, by an unconvincing performance of complex ornaments. Everyone taking a practical exam receives a mark form giving the examiner's detailed comments on each section of the exam. Successful candidates also receive a certificate to honour their achievement. Most students feel a new surge of enthusiasm after a successful exam and want to start the next grade immediately, others enjoy the chance to expand their repertoire and play pieces from many different styles, including lighter items.