Complex sentence: These included the Haslemere Town Band, who performed the "Devil's Punch Bowl March" as the first VIPs emerged from the tunnel, a march composed especially for the occasion by 16-year-old Band member, Eric Foster.
Split into simpler sentences: These included the Haslemere Town Band, who performed the "Devil's Punch Bowl March" as the first VIPs emerged from the tunnel. This had been composed especially for the occasion by 16-year-old Band member, Eric Foster.