The adjudicator for qualifying contests sits enclosed and unable to see the bands as they play, and then judges them on various points, one of which is interpretation.
The test pieces set for or commissioned by this section are extremely difficult and use complicated musical conventions and techniques to challenge the musicians.
On many occasions success or failure will depend on very small matters or mistakes, and this closeness between bands often increases in the higher sections.
The marches and other compositions of the Welsh composer and conductor T. J. Powell remain constant favourites[citation needed].
One of the principal reasons for a decline into Fourth section status lies in the difficulties of recruiting new players.
The decline in industrial sponsorship removed the financial backing which supported such vital items as a practice room, uniforms, instruments, stands, chairs, and music, which taken together cost far more than a subscription band can ever afford.
However, with very few exceptions, these bands have been struggling to get by supported only by the members' subscriptions, the occasional sponsored concerts, and playing Christmas carols.
Not infrequently, practice rooms become unavailable, adding still more to the pressure to disband, and many bands have disappeared or amalgamated in recent years.
However, their strength undulates, so a youth band could sweep all before them in August, and then collapse in September when all the top players leave for university.
The first round of the championships are the Area contests where bands across all sections compete to qualify for the national Finals.
In early June (after the qualifying bands from the Area contests have been decided), the set works for the Finals are announced.
Furthermore, the standard of many university brass bands oscillates widely every year when a third of their players graduate and are replaced.
University bands are separated into two sections, the Trophy and the Shield, which run concurrently over one day in February.
Some major competitions (e.g. Whit Friday) award a university section prize, but this is even rarer than for youth bands.