Quadrupling. In the Woodwind, Brass or Fretted Instruments sections (excluding bass guitar) to play a fourth instrument (within the accepted families of such instruments respectively), the minimum weekly production salary shall be increased by a further 15% of the minimum in 1.1 to: Minimum Weekly Quadrupling Salary 2 October 2023 – 29 September 2024 30 September 2024 – 5 October 2025 6 October 2025 – 4 October 2026 Once Nightly £1,716.42 £1,767.05 *CPI plus 0.75%, based on the CPI figure published in August 2024, with a maximum increase of 5% and a minimum increase of 2% Twice Nightly £2,060.18 £2,120.95