Canto Ostinato is a familiar landmark of modern Dutch art music. Known affectionately and simply as the Canto, it receives many performances each year in a plethora of arrangements, whether with the two or four pianos which Simeon ten Holt had in mind when he wrote the work in 1976, or performed by soloists and ensembles. At the invitation of Orgelpark Amsterdam, the organist Aart Bergwerff has been giving annual performances of Canto Ostinato, always in a new instrumentation, in company with different musicians. This groundbreaking version for trumpet and organ arose as the result of a chance meeting backstage between Bergwerff and the trumpeter Eric Vloeimans.