Synths ⇝ Siel ⇝ Siel Kiwi

The Kiwi is an analog synthesizer built using SSM chips, with SSM2031 for the VCOs, SSM2024 for the VCAs, SSM2056 for the envelopes, and SSM2044 for the filters.

The Kiwi has MIDI, but it is an early implementation that is not very robust. It also has 3 LFOs and is pretty similar to the Siel DK600.