The mute silences the mouthpiece sound while allowing it to be captured by a microphone.
THE CIRCUIT BOARD
The custom circuit board is shaped for the specific geometry of Stella's design, and accounts for valves and various knobs.
The code is the brain of Stella, crunching the numbers in order to make the instrument work.
These smaller miscellaneous items complete Stella.
The design is what gives Stella it's aesthetic appeal.