The back of the instrument seen above supplies controls including a spread dial for environment the pitch of the "free" note that the unmodulated device returns to, a focal point switch phases the ends of the note envelopes, speaker on/off switch, power switch with blue LED pilot lamp, pulsing red envelope LED and gold plated RCA phono line output. Two more gold plated RCAs are located on the case back for the remote sensors. This Photon Clarinet is one of a few models that include remote sensors beneath glass dust covers. Each remote sensor, one for sweeping the pitch ant the other for stepping the pitch via hand shadow, includes a photo resistor beneath a vintage pilot lens. Sensor bodies are wooden with felt base cloth, milled and piped in the anti theory workshop for sturdy joinery. Sensors are coloured in a number of stages to match the instrument's case. The case itself is finished in crackled fluorescent colors and dusted with iridescent powder under a last gloss. Control titles are hand inked. Hi there!I have been playing clarinet for 8 years and a few months ago I switched to tenor saxophone for marching band this year. I haven't hardly touched my clarinet for the past few months so I just pulled it out today and tried gambling some old music. Sad story short, I forgot a variety of basic items that I didn't really pay much recognition to ago.