MakeNoise has introduced the tELHARMONIC, a multi-voice, multi-algorithm Eurorack synthesizer module. The new module, programmed by Tom Erbe, is inspired by Thaddeus Cahill’s Telharmonium, a proto-synth, originally created in 1897. tELHARMONIC features three electronic tone generation techniques that are historically important, but infrequently implemented within modular synthesizers.