A melody, especially a simple and easily remembered one, Electronics Adjustment of a receiver or circuit for maximum response to a given signal or frequency, The state of being in correct pitch, intransitive verb_ Archaic To utter musically; sing, To adjust (an electronic receiver) to a desired frequency, To adjust (an engine, for example) for maximum usability or performance, transitive verb_ To put into a state adapted to produce the proper sounds; to harmonize, to cause to be in tune; to correct the tone of, To give tone to; to attune; to adapt in style of music; to make harmonious