Sample collections use the name Ace Tone Rhythm King, but the surviving references do not identify the source instrument. The documented Maestro Rhythm King is a separate case, with its own product and circuit history.
Listening archive
The rhythm box remains playable history.
The Planet Drum Machine catalogue preserves the Rhythm King as a sound source as well as an object. Its presence there gives a reader a route from panel legend to rhythm, without assigning it to a record we cannot name.
Open the listening archive ↗More records in the archive
The machine keeps turning up.
Archive source
Digital Redux / Planet Drum Machine
Digital Redux carried an Acetone Rhythm King source into Planet Drum Machine, keeping the scarce preset box audible in a later rhythm-library release.
Read Digital Redux — Planet Drum Machine machine list ↗A name that travelled
A sound can outlive the nameplate that would explain it. ‘Ace Tone Rhythm King’ survives as a sample-library label, listed separately from Rhythm Ace and Rhythm Master in Drum Abuse. It gives us a name attached to a group of sounds; the references do not identify the model those sounds came from.
Drum Abuse Vol. 1 — Vintage Rhythm Machines source list ↗ Digital Redux — Planet Drum Machine machine list ↗
The Chicago pulse
Maestro also used Rhythm King. Malte Pelleter’s technical history discusses its timing architecture alongside a Chicago Musical Instrument Company patent filed in 1968: timed pulses and matrix logic arranged the percussion into repeatable rhythms. The study treats Maestro’s Rhythm King and Ace Tone’s Rhythm Ace as distinct designs. The shared words do not establish which instrument supplied the Ace Tone-labelled samples.
US 3,548,065 — Automatic rhythm system with selectable plural musical arrangements ↗ Funkologialienatimepistomachinistics ↗
Keeping the trail
The recordings preserve the name more clearly than the hardware. Until a model can be identified, there is no reliable panel, rhythm list or production date to describe under this label. Readers looking for the documented instruments can follow the separate Rhythm Ace and Maestro Rhythm King accounts.
Drum Abuse Vol. 1 — Vintage Rhythm Machines source list ↗ US 3,548,065 — Automatic rhythm system with selectable plural musical arrangements ↗
Sources
The visual archive
Further visual evidence.
Additional visual sources (1)
Original publications and related image sources.
- Planet Drum Machine — machine-named demonstration catalogue ↗
1 November 2011 release metadata · Kalamazoo Public Library catalogue / Digital Redux metadata · Downstream machine-name catalogue record