A SCHOOLBOY composer from Colchester is to see his work performed at the Proms.

Sebastian Black is giving famous child music prodigy Mozart a run for his money after earning his big break aged 14 by winning the BBC’s Young Composers Competition.

The piano piece he wrote will be performed as part of the internationally-famous Proms, at the Royal College of Music on August 2.

He has also been commissioned by the BBC to write a new piece, which will be given a high-profile debut.

Details of the second performance have yet to be announced but last year’s winners saw their works performed at the Last Night of the Proms, which is watched by millions on TV.

It is an opportunity classical composers would labour for years to grasp – but Sebastian revealed his work, Post-Scriptum, took him less than half a day to set down.

He said: “I wrote it quite quickly, in total probably only about four hours.”

Penned in the dead of night during a young musicians’ course in Aldeburgh, Suffolk, the piece is a duet for two pianos, one positioned on stage and the other behind the scenes.

The competition’s chief judge, composer, Fraser Trainer, said it was “daring and intense, combining moments of gentle clouds, clusters and rumblings against more lucid tonal clarity”.

Sebastian, who taught himself the piano aged three and began studying classical scores at seven, said: “I thought that it would be nice to use the piano, which is an instrument I know quite intimately, and to have that echoed by another piano offstage.”

Post-Scriptum will be broadcast on BBC Radio 3 on August 6, at a time yet to be confirmed.