EXETER bids farewell to the Summer In The City event tomorrow with an extraordinary musical grand finale event at Exeter Castle.

The Classical Music Event runs from 11am until 11pm and is a day packed with performances and also the chance for participation, with the aim of helping people see classical music in a new light.

There will be live performances from some of Exeter's local orchestras and quartets including the charity Joined Up Thinking Projects, which offers musical opportunities for young people and families regardless of their experience in music.

They will perform an interactive family concert, featuring everything from the music of Lady Gaga to Ghostbusters, Mozart to Indiana Jones.

Children will be invited on stage to join in, either by playing instruments or even simply sitting on the stage. To encourage them to participate, there is going to be help on hand from one of Doctor Who's Daleks – but no exterminating – and maybe even an Ood.

As the day draws on the mood will change to a full classical repertoire with performances from Arnold Camerata and The Knightley Quartet, then later in the evening the Devil's Ensemble will perform music from Eastern Europe played in a classical style and accompanied by digital projections. The highlight of the day, however, will be a classical music "first", courtesy of the Czech-born musician Ondrej Pochyly, who lives in Exeter.

He will perform a unique and contemporary composition, Requiem For The Lost, which is for full orchestra and choir, but it is digitally programmed to provide a "virtual" sound using just computer technology.

Ondrej, who has studied music since the age of five, will conduct the 'orchestra' using Nintendo Wii remote controls to control the tempo and dynamics.

He wrote the requiem following the death of his mother two years ago. It was his parents' dedication and sacrifice that enabled him to study music.

However, it proved almost impossible to commission a full orchestra and choir to perform the piece, which is when he decided to look at virtual instruments, which had used previously to produce music for other media.

The depth and the quality of the music, which he has spent more than 70 hours programming, is incredible and will be performed and conducted on the day using only virtual instruments and cutting edge technology. This performance will be the world premiere of Requiem For The Lost.

Admission to the classical events at the Castle is free and the audience can come and go as they please. Food and drink will be available.