Comparisons between Gustavo Dudamel (26) and Britain’s Simon Rattle have been frequently voiced, and Rattle has, indeed, been eloquent in praise of this remarkable newcomer. It’s not just the mop of curly hair, however; if you watch early Rattle DVDs… you see that same eagerness to put things across, that obsession almost to reach into the orchestra and pull things out into the light, that made everything in last week’s concert, wherever you sat in Disney Hall, more vivid, more thrilling. We need conductors like that; now we have one more.”