From the Publisher
A complex figuration will ‘bend’ or ‘spread’ as it touches a pre-determined frequency margin – in this case a low piccolo F – with the resultant emanation of an ‘interference spectrum’. This process occurs seven times in the work.
Performance duration (approx): 3'00
Difficulty level, roughly compared to ABRSM exam grades. 0 is beginner, 9 is advanced (beyond grade 8).