Holst's Planets is a hi-fi test piece par excellence. The music explores every nuance and dynamic of which a modern symphony orchestra is capable. When reproduced at a realistic volume level with full frequency range, the music has a stunning emotional impact - at times savage - at other times beguiling. The piece has been recorded many times since it's 1918 debut under Sir Boult's baton but it's colours never glowed more brilliantly than in this performance.