Description
Control firmware for a drum machine, read from the machine’s chips before it was scrapped.
Provenance
Found in a school storeroom when the building was cleared. The chips were read several times in a programmer; one differing bit was resolved by majority. Independent reads agree bit for bit.
Preservation
- Fixity (SHA-256)
5f8d5ae7ec49ae78324afdf20a3630d9113fa853400a0c1905776ef322c21610- Last verified
- Oct 23, 2026, by Vigil
- Emulation profile
- LZE-EMBED-2 · lz-mcu core
- Copies
- Three, on two kinds of storage, in two cities
- Original carriers
- Kept in cold storage in Vancouver
Access
Free, in the Lazarus reading room in Vancouver and in partner reading rooms. The license does not permit copies to be taken away.
In the reading room it runs in emulation under profile LZE-EMBED-2, from a read-only copy of the recovered image, as it would have on an embedded controller.
Cite as: Pioneer Controls, Pioneer drum machine controller, model MM-500 (1979). Lazarus Archive, LZ-38047.