Series Temper pairs ANVIL and DRUMFORGE, two physical-modelling drum synthesis instruments for Voltage Modular simulating struck metal, membranes, and shells, each with per-voice controls and CV throughout. ANVIL is a modal percussion voice built from ten damped resonant modes: TUNE sets the lowest mode from 55 to 440 Hz, CHORD stretches the mode ladder from harmonic to inharmonic, SIZE scales the body, MORPH moves continuously through glass, steel, wood, and membrane, STRIKE sets the exciter spectrum, DECAY sets ring time, and a dedicated BODY output carries the lowest mode on its own. DRUMFORGE is a layered drum synthesizer that blends transient, body, and metallic layers into a single voice for each hit: MORPH blends the layers, TUNE sets pitch with a V/OCT input, DECAY sets length, SNAP sets transient density, WEIGHT sets body density, METAL sets metallic content, DRIVE adds saturation, and dedicated inputs provide CV over MORPH, DECAY, and WEIGHT. Buy the pair together and save versus purchasing the modules individually.