Shipping is a time-specific piece for piano and live radio broadcast, using the Shipping Forecast on BBC Radio 4. The performance of Shipping is affected by changes in several aspects of the weather in the forecast, meaning that each realisation of the piece is unique, and that the piece is subject to seasonality. Each performance uses the same basic material, the chords derived from the geographic co-ordinates of each area/point in the forecast, the interpretation of which is then altered based on variables in the forecast. Shipping should only be performed with a live broadcast.
Performance by Richard Uttley at hcmf// 2015, 0048 broadcast.