Star Song Rotating Disc Sequencer

A Magic Pulsewave Star Song

AMP’s Star Song is a sequencer like no other, using a rotating disc that is programmed by using tape or markers to black out sections on its seven rings: six for gates/notes, and one for an internal filter’s cutoff frequency.

Using the built-in minimalistic pulsewave synthesizer, you can create interesting rhythms and melodies, and control the built-in bandpass filter cutoff frequency. You can use the three outer rings to program notes that correspond to eight different intervals, tuned on the side of the device using multi-turn trim pots. The next three inner rings program octave divisions, and the innermost ring adjusts the cutoff frequency of the internal synth voice’s bandpass filter.

Or, alternatively, you can use the AMP Wave Expander to use Star Song to control external modular systems, using the rings to program gates and a tuned analog control voltage (whose tuning may be controlled separately from Star Song’s own internal tuning). When using the expander, you get six Gate outputs, one CV output, and four octaves of raw, un-gated pulse waves for use as a sound source in your modular or semi-modular equipment.

Two touch plates control the direction and start/stop of the disc, and a central control adjusts the speed. These parameters can be controlled externally via dedicated 3.5mm input jacks: speed can be controlled via an external oscillator, while direction can be altered with an external gate signal. Extra discs are sold separately so you can keep your masterpiece stored indefinitely.

The Star Song from AMP is a unique and aesthetically pleasing way to generate sequences that is sure to turn heads.

Star Song Features

• Disc-powered sequencer
• Truly analog programming, by blacking out segments of physical rings
• 6 Outer rings correspond to gates/notes, 1 Inner ring for the internal bandpass filter cutoff frequency
• Built-in Quasi-monophonic pulsewave can be set to 8 tune-able notes in three octaves
• Controls for start/stop, speed, and direction
• External control inputs allow for oscillator control of speed and gate control of direction
• Works with Wave Expander
• Extra discs sold separately