Embodiments of electrode systems having non-uniform spacing between electrodes along the axial direction for track lighting and other linear systems are disclosed. These systems may be used to provide directional flexibility for removable lighting fixtures with an asymmetric light distribution by providing a range of module position and angular mounting options. Some embodiments include electrodes which overlap continuously or at a series of discrete crossover overlap nodes to provide lateral support without external spacers. Electrode segments may be electrically and mechanically attached at overlap nodes to create extended two- and three-dimensional structures with localized planar areas. Embodiments with preferential bending regions provide additional directional capability. Embodiments of electrode systems integrated into planar surfaces or combined into extended suspended arrays are disclosed Modules with magnetic connectors having complete magnetic flux paths for use with the electrode systems are also disclosed.