Classic FM Live with Laithwaite's Wine: the rehearsal

1. Tchaikovsky

Even the music itself looks like a work of art - we're looking forward to hearing the full orchestra performing this romantic masterpiece from Sleeping Beauty. Picture: Richard Johnson

2. The string section

The strings tackle Rachmaninov's soaring melodies in preparation for tonight's concert. Picture: Richard Johnson

3. Orchestra of the Welsh National Opera

Getting to grips with some romantic film music, the orchestra have a final run through of the music for tonight's concert. Picture: Richard Johnson

4. HJ Lim plays Rachmaninov

HJ Lim rehearses the finer details of Rachmaninov's beautiful piano concerto - the nation's favourite. Picture: Richard Johnson

5. The horns

In perfect harmony, the horn section rehearse the exposed music in the Rachmaninov. Picture: Richard Johnson

6. HJ Lim

Playing the entire concerto from memory, HJ Lim takes to the stage. Picture: Richard Johnson

7. Frédéric Chaslin

Frédéric Chaslin keeps the orchestra in perfect time. Picture: Richard Johnson

8. The cello section

Hitting the high notes with ease, the cellos gear up for tonight's performance of romantic classics. Picture: Richard Johnson

9. Frédéric Chaslin

The conductor's attention to detail is faultless in the final hours before the concert. Picture: Richard Johnson

10. HJ Lim

HJ Lim is in a world of her own as she wows the orchestra with her interpretation of Rachmaninov. Picture: Richard Johnson

11. Having a rest

It might look like there aren't very many notes on this score, but every bar of silence needs to be perfectly counted. Picture: Richard Johnson

12. Salut d'Amour

Rehearsing this most romantic of pieces, on the most loved-up day of the year, the orchestra prepare to wow the audience. Picture: Richard Johnson

13. Orchestra of the Welsh National Opera

The Orchestra of the Welsh National Opera rehearse for tonight's concert, where they will be playing music by Tchaikovsky, Shostakovich, and, of course, the amazing Rachmaninov Piano Concerto No. 2.

14. Wynne Evans rehearses

Wynne Evans commands the stage in rehearsal for tonight's concert. Picture: Richard Johnson

15. Claire Jones tugs on the heartstrings in rehearsal

Harpist Claire Jones gets ready for her performance at the Wales Millennium Centre. Picture: Richard Johnson

16. Orchestra of the Welsh National Opera

Warming up for tonight's concert, it's the Orchestra of the Welsh National Opera - seen from above, before the audience arrive.

17. Claire Jones

Claire's playing a piece written by her husband, Chris Marshall, that he used as an engagement present to her - pretty perfect for a Valentine's Day concert, I think. Picture: Richard Johnson