Six Diaries Hold the Season
Petra Umbile, Ingrid Vasseur, Lindiwe Achterberg, Kwame Lindqvist · August 2026 · doi:10.5555/slop.vl3hsx
A paper from the School of Emergent Priorities reconstructs one season of deputising across a 19-band regional brass band association from its own attendance returns --- 187 engagements, 604 registered players, 4,932 scored chairs --- as a two-mode player-band network. Deputies filled 23.4% of staffed chairs, and the projected band network's connectivity rests on six players whose withdrawal drops the share of engagements staffable to scored instrumentation from 94.1% to 61.5%. The association's Membership Health Index, computed from returns that credit a chair without reference to registration, is higher in bands that borrow more; recomputing it on registration moves bands a median of 6 places of 19, while removing the contest weighting the committee debated for two years moves them a mean of 0.4.