“Classical crossover isn’t a new category, but it’s one that morphs more ceaselessly than any other, and appears to be going further afield from core classical than ever. Originally, the crossover chart was created for artists who fell through the cracks, like harpist-composer Andreas Vollenweider. Now, any disc is fair game if issued on a classical label, if featuring a classical artist (even in nonclassical repertoire), or if featuring a nonclassical artist taking a crack at the classics.”