A musical wind instrument with a series of holes for the player to blow into, each hole producing a different note

Showing accord in feeling or action. / Having components pleasingly or appropriately combined. / Melodious; in harmony.

(mathematics, physics) oscillating motion (as of a pendulum) in which the acceleration of the oscillator has an equal magnitude but opposite direction to the displacement of it from the equilibrium position

Incapable of causing harm or danger; safe. / Not intended to harm; inoffensive. / (obsolete) Unharmed.

(intransitive) To be in harmonious agreement. / (intransitive, music) To play or sing in harmony. / (transitive, music) To provide parts to.

An instrument used to measure the amplitudes, frequencies and phases of the components of a nonsinusoidal waveform; especially one used for analyzing audio frequencies.

pertaining to harmony / pleasant to hear; harmonious; melodious / (mathematics) used to characterize various mathematical entities or relationships supposed to bear some resemblance to musical consonance

(physics) A component frequency of the signal of a wave that is an integer multiple of the fundamental frequency.

(mathematics) A type of measure of central tendency calculated as the reciprocal of the mean of the reciprocals, ie, H=n/1/x_1+1/x_2+⋯+1/x_n

In a harmonious manner; coordinately.