Jealousy of people who live in Birmingham is not (I venture to hazard) so widespread a phenomenon as to merit a name all its own. After last night’s Prom from the CBSO and music director Andris Nelsons however, a term may well have to be coined for all of us Londoners whose green-eared envy seems unlikely to abate any time soon. We’ve heard the recordings and the rumours of greatness trickling down from the West Midlands, but the opportunity to see this partnership in action further south is rare. Conquering the Royal Albert Hall with an evening of generous, emotive music-making, the CBSO have issued quite the challenge to their London rivals.