Solo acts are an occasional treat in this column, as the people involved often seem to be extra dedicated and focused on their work in a way that often can’t be as intense when diffused across a larger ensemble or band. Plexusplay is one such artist, a performer whose work is defined by a virtuosic relationship with mallet-based chromatic instruments and EDM club-style visuals. The Arcata Playhouse is hosting this eccentric prodigy at 7 p.m., and for $15 ($10 for students), you can have a gander at a sui generis musical being at the height of his talent.