Parker Callister is a composer and guitarist from Ithaca, New York. His music draws influence from electronic and noise music while also operating in a contemporary music idiom. Compositional interests include close-mic amplification, spectral harmony, as well as timbral exploration. He has had his music performed by notable artists such as Erik Drescher, Peter Sheppard Skaerved, Jeffrey Ziegler, Lori Freedman as well as the Unheard//Of Ensemble, the Ithaca New Music Ensemble, OSSIA New Music, line upon line percussion, the Peabody Symphony Orchestra, the Eastman Graduate Composers Sinfonietta, the Ithaca Graduate Percussion Trio, the ETHEL Quartet, Yarn/Wire, members of the Slee Sinfonietta, ECCE Ensemble, and ASKO/Schoenberg.

His primary mentors have included Ricardo Zohn-Muldoon, Michael Hersch, Evis Sammoutis, Du Yun, Carlos Sanchez-Gutierrez, Robert Morris and Jorge Grossmann. He has received commissions from the Baltimore Integrated Arts Society, line upon line percussion, OSSIA New Music, and the Music Educators of Lansing, New York, and has received numerous awards and recognition for his music. 

Parker received his PhD in music composition from the Eastman School of Music. Currently, he teaches as a lecturer at SUNY Oneonta.