audiobriefs
8:47in productionCh. 1 · Home-built, not stage-ready/ 8:47 · ceiling 15 min
Keyboards & organs

Hohner Pianet

Two mechanisms. One instrument. Neither one sustains — but both cut through a mix like a knife.

The Hohner Pianet is an electro-mechanical piano developed by Ernst Zacharias at Hohner in Trossingen, West Germany. It evolved from the Cembalet and was intended for home use. Production spanned two distinct mechanism generations: the first (1962–1977) used ground stainless steel reeds, variable capacitance pick-ups, and leather-faced pads; the second (1977–1983) used rolled spring-steel reeds, electromagnetic pick-ups, and silicone rubber pads. It requires external amplification, has 61-key polyphony (later 60), and generates sound via vibrating tuned reeds activated by key-operated pads.

Chapters & takeaways4
  1. 1:08
    Home-built, not stage-ready

    Designed by Ernst Zacharias in Trossingen, it was a home-use variant of the Cembalet — not a stage instrument.

  2. 2:34
    Two generations, two sounds

    Two mechanisms define its life: ground stainless steel reeds with leather pads and capacitive sensing (1962–1977), then rolled spring-steel reeds with silicone pads and electromagnetic sensing (1977–1983).

  3. 3:41
    No sustain. Just strike and stop.

    Keys are levers that press pads onto reeds — no hammers, no strings, no sustain. Sound stops the moment the pad lifts.

  4. 5:08
    One voice in Hohner’s keyboard family

    It shared showroom space with the Clavinet, Guitaret and Basset — part of Hohner’s 1960s–1990s push into portable electro-mechanical keyboards.

Worth your time?

Yes. Use the whole thing.

3.5/ 5
What works
  • immediate-attack
  • two-distinct-sonic-generations
  • compact-electro-mechanical-playability
What does not
  • sustain
  • offer onboard tone controls
  • include built-in amplification
Use it if
  • vintage-keyboard-players
  • studio-recording-artists
  • tactile-instrument-collectors
Skip it if
  • live-performers-needing-reliability
  • beginners-seeking-intuitive-controls
  • producers-prioritising-digital-flexibility
The written brief2 min read

What it is and what it was built for

The Hohner Pianet is an electro-mechanical piano designed by Ernst Zacharias and built in Trossingen, West Germany. It was intended for home use, evolving from the Cembalet as part of Hohner’s range of innovative electromechanical keyboards.

How it works, in terms a player would use

Each key is a lever pivoted on a fulcrum with a return spring. Pressing a key extends its rear to press a pad onto a tuned steel reed. The reed vibrates and is sensed by a pick-up — either variable capacitance (1962–1977) or electromagnetic (1977–1983). It requires external amplification to be heard.

What it does better than anything else

It delivers immediate, percussive attack with zero latency — the pad-to-reed action is direct and unfiltered. Its two mechanism generations give players two unmistakable textures: the first is drier, thinner, more brittle; the second is warmer, rounder, slightly slower to speak.

What it does badly

It cannot sustain notes. Its reeds stop vibrating as soon as the pad lifts. It offers no onboard volume or tone controls. The leather pads of early models wear out; silicone pads of later models degrade with heat and age. It has no built-in speaker or headphone output.

What people made with it

Musicians used it for its sharp, clattering tone in pop, soul, and early electronic recordings — not as a piano substitute but as a rhythmic, textural voice. Its sound appears in studio work where clarity, cut, and immediacy mattered more than warmth or decay.

Who should use it, and who should not

A player who values physical interaction over programmability. Someone restoring or performing with vintage gear. Not a gigging musician needing consistent output or quick setup. Not a producer relying on sample libraries or plug-ins for speed.

Is it worth your time

Yes — if you need a compact, tactile electro-mechanical piano with two distinct sonic eras built into its history. No — if you need reliability, dynamic range, or hands-on tone shaping beyond pad pressure and amp choice.

Same bench · Keyboards & organs4 of 28
9:06
Hohner PianetHohnerThe Hohner Pianet is a compact, self-contained electro-mechanical piano built in West Germany. It generates sound by lifting pads from tuned reeds, producing a sharp attack and clean sustain. Two mechanical generations differ in reed material, pad composition, and pick-up type. The Pianet T uses NASA-patented suction pads and requires no external power. It was part of Hohner’s 1960s and 1990s line of electromechanical keyboards, including the Cembalet, Basset, Guitaret, and Clavinet.
7:56
ClavinetHohnerThe Clavinet is a 60-key electromechanical keyboard made by Hohner from 1964 to 1982. It uses rubber pads to strike tensioned steel strings, with electromagnetic pickups capturing the vibration. Its weighted action enables dynamic volume and aftertouch via string stretch. It excels at percussive, expressive, midrange-heavy articulation—but offers no sustain, limited range, or tonal flexibility beyond its fixed pickup response.
7:56
Farfisa Compact DuoFarfisaThe Farfisa Compact Duo MK1 is a portable electronic organ with drawbars and vibrato. It delivers a distinctive, aggressive organ tone. No technical specifications are available. Its design prioritises immediacy over documentation or expandability.
10:14
Korg M1KorgThe Korg M1 is a 1988 sampling-based music workstation with 16-note polyphony, 16-bit PCM sample playback, built-in effects including reverb, delay, chorus, tremolo, EQ, distortion and Leslie simulation, and an eight-track MIDI sequencer. It uses sampled attack transients, loops, sustained waveforms and percussive samples. It was the bestselling synthesizer ever at that time, selling over 250,000 units. None of its features was unique, but their integration was unprecedented.
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