The invention relates to a music generator adopting liquid for tune control. A magnetic rod base cavity is arranged at one end of a tune cavity base, a base is fixed on the magnetic rod base cavity, an electromagnetic rod is fixed on the base, a resetting elastic piece is fixed on the outer side face of the base, an inserting piece groove a and an inserting piece groove b are formed in the middle of the tune cavity base, a side plate portion of a magnetic attraction iron piece is inserted in the inserting piece groove b, and a pull pin is fixed in the side plate portion and penetrates a metal piece a to be fixed on a metal piece b. Three major tune member mechanisms including the metal piece a, the metal piece b and a silica gel piece are integrated on the tune cavity base, so that various different tunes on a basic tune level can be created by controlling liquid storage quantity on one tune control element; seven tune control elements are adopted to synthesize a tune controller, so that control on all tunes of one basic tune level is realized; the music generator is ingenious in structural design, high in refinement degree of parts and accurate and convenient in tune control.