Dudamel Contract extended in LA; Singers Bryjak, Radner Among Germanwings victims;
New Ethan Hawke Film "Seymour" profiles classical pianist; Using Spotify and Itunes to teach music.
Glennie, Harris win Polar Music Prize; Boston's Symphony Hall among best in world
Rattle Takes on London- wants new hall; Music That's Purrfect for Cats
De Waart, Eschenbach retire to "Laureate" status; Zimmerman fights to retain Kreisler's Strad.