The Digideridoo is a musical instrument, based on the Arduino Microcontroller and Pure Data (PD). By singing a note into the microphone, up to three seamless samples are replayed, matching the pitch of the recorded signal. When the user stops singing, the replay fades after a while. With 3 buttons the user can control, which samples are played when a note was recognized. Additionally a slide potentiometer can be used to change the pitch of the replay according to the last recognized pitch.