Jealousguy is the name of a solo act of Masami Takahashi (beat artist/producer/composer, based in Sapporo, Japan).
http://soundcloud.com/takahashisantojealousguy She is a beat maker, best known for her techniques on piano collage, synth, sampling.
In 2007, her track was featured on "A Prevalant Oscillation Base" (V.A. Volvox Records). In 2009, Masami released her tracks online through Taion Label (Gate Records Group) and Undertone Label as well.
In April 2011, Masami released her long-awaited 1st LP "Hydration" (on Ihatov Remains Label).