Particular interests include prepared piano, percussion, environmental music, and music of Sichuan province. Originally from San Diego, and now residing in Brisbane, he composes for adventurous musicians, performs as a soloist and in Clocked Out, and collaborates with musicians, artists, dancers, and poets.
His music has been performed in Carnegie Hall, Sydney Opera House, Cafe Oto, Chengdu Arts Centre, Melbourne Festival, OzAsia Festival, and Brisbane Festival, among others. He is a recipient of an Australia Council Fellowship in Music, a Civitella Ranieri Fellowship, and numerous individual grants. He has collaborated with musicians Steven Schick, Margaret Leng Tan, the Australian Art Orchestra, Decibel Ensemble, Zephyr String Quartet, Ensemble Offspring, and many others. His music can be heard on Mode Records, Innova, Room40, Move, Clocked Out and Immediata.
Together with Vanessa Tomlinson, Griswold directs Clocked Out, who create original music for prepared piano, percussion, found objects, and toys. Their albums include Time Crystals, Foreign Objects, Water Pushes Sand, and Every night the same dream. Clocked Out also produces innovative concert series, events and tours, for which they have received the APRA-AMCOS Award for Excellence by an Organisation (2011) and two Green Room Awards (2000).