His main influences were
Sun Ra and
Anthony Braxton, both connected to but "apart from" the jazz world. A short solo saxophone piece can be found on the
(Y)Earbook, Volume One CD (1991, Rastascan Records), which also features music from guitarist Henry Kaiser and percussionist Greg Bendian, among others. He received his degree from
Yale University and won a commission from
Bang on a Can in 1999. Also in 1999, Plonsey toured the
Netherlands with
Steve Horowitz' Mousetrap Quartet, alongside of reed players Peter van Bergen and Michael Moore. While in the Netherlands, he engaged in one-off improvised music concerts with The Amsterdam String Trio and trumpeter Eric Boeren among others. Two notable CDs with John and Peter Hinds of "Sun Ra Research" fame were released on the tiny Omni Sonic label in 1994 and 1995:
Connections and
Another Curiosity Piece. Typically, his infrequent recording output consists mostly of self-produced material or extremely limited editions by connaisseur record labels like Limited Sedition. A 1997 solo CD called
Ivory Bill on the American Music and Arts label highlights Plonsey's use of multiple saxophones, mostly recorded by overdubbing two or more saxophones in the recording studio. Plonsey's 1999 album
open door and desire, released on the
Italian Felmay label, can be seen as a further volume of solo saxophone experiments with occasionally added keyboards, played and programmed by Plonsey himself. In 2003, Plonsey wrote
What Leave Behind, a
concerto for electric guitar and toy orchestra, for the
Oakland, California-based
experimental music group
Toychestra and English experimental guitarist
Fred Frith to perform. A recording was released on CD in 2004. Other productions include the opera
Leave Me Alone! with
Real Time Opera. == Organizational work ==