“Commissioned by Maarten Mostert and the Dutch National Cello Competition in June 2006. The titles of these five short pieces are:

1. On Rhythm,
2. On Colour,
3. On Speed,
4. On Intonation,
5. On Double Stops.

The subjects are therefor partly musical, and partly technical. In terms of content, these pieces are somewhere between etudes and concert pieces.”

– Theo Verbey