Basimilus Iteritas Alter is a 10HP parameterized digital drum synthesizer with its roots in the analog world. At its heart, it is a simple six-oscillator additive synthesizer with adjustable waveform, harmonic spread and decay. Adjustable attack including a noise oscillator is also included. These are summed and fed into an infinifolder for crunch and variety. Basimilus Iteritas Alter is an improved version of the discontinued Basimilus Iteritas. BIA is 2HP smaller, includes CV of switches, adds an third mode, and pitch range and knobs now offset rather than attenuate.