Known as the "Music Magician", MASS (Music, Architecture, Sonic, Sculpture) is an internationally renowned performance group that combines unique musical sculptures and site-specific installations with traditional instrumentation. MASS Ensemble is specially known for its unique large-scale musical instruments. Described by the ABC TV as "the ultimate musical instrument", The Earth Harp is "the world's largest stringed instrument", designed and created by Artistic Director William. The name of "Earth Harp" is originated from its premiere above one huge valley with the strings spanning over 1000 feet.

The installation of the Earth Harp makes the venue itself, no matter it is a theatre or an outdoor plaza; it becomes a musical instrument, rendering extraordinary experiences of a musical performance from inside an huge instrument.

MASS is equipped with many invented instruments and featured by its live performance and multimedia displaying. It has performed in John F Kennedy Center for performing arts, Lincoln Center, Colosseum and etc. and it also has achieved accomplishment in many international famous festivals.

Planet String is inspired by the world environment and it also contains the new expressions with the Earth Harp on the hits by U2, Michael Jackson and Beatles.