FILAMENT
Subtractive keyboard
Z
C4
OctaveX
Oscillator
Filter
Envelope
ScopeLevel
A–J play notes · Z / X octaveA W S E D F T G Y H U J play from this C · Z / X shift octave
Standby
Power on to play
Filament stays silent until you start it. Then the keys, filter, and scope come alive.