testpiece

noun
UK /ˈtestpiːs/
US /ˈtestpiːs/

A testpiece is a special piece of music or work that someone practices to show how good they are.

She played her testpiece at the piano exam.


OTHER MEANINGS

2. A sample of material used to test a machine or process.

The engineer cut a testpiece from the metal sheet.

3. A standard task used to compare the skill of different people.

The climbing wall route became a testpiece for local athletes.

4. A difficult piece of music chosen to reveal a performer's technique.

The concerto is a famous testpiece for young violinists.