I am an instrument with which you can create something special like an emotional state. Make a person happy or sad, or give them something to hate. I am thin and I'm used every day by some, and I'll admit it, I'm kind of a friend to your thumb. Use me at your own pace, and I promise to you I'll leave some kind of trace. What am I?

RIDDLE CATEGORIES

Incorrect Guesses
papers button textin knuckl action letter string vision voices inkpen gpicks bongos temper remote screen whisle mouths piston paiban pinpia pulalu iphone paints picolo corona places points prayer plates pinkie aaaaaa banjos food!! camera trumpe finger plaque grgrfe smiles pickle plante grasss pervet pucked picked pianis pulgar plague primer prefer piccol parody violet violin idkkkk quotes comedi comedy corder record pianos tygers tablet thread kazooo mobile tvljkn phones pencel gutare credit needle guitar plants nature
The first user to correctly answer this riddle was darthnigel