Earth and Pluto

Gustav Holst didn't think there was any need in writing a piece of music about Earth as we live there. He t4houfght "What is the pont in writing about Earth when we live there?". As we live on Earth, Holst thought we knew all we needed to know about Earth and that all the other planets were much more interesting so he didn't compose any music for that planet. As for Pluto, it didn't exist, it hadn't been discovered, when Holst composed the Planet Suite. He couldn't write a piece of music for a planets thta didn't exsist could he?