module music_top(
    input   wire sys_clk    ,
    input   wire sys_rst_n  ,

    output  wire beep
);
wire pwm;

freq_select freq_select_inst(
.sys_clk        (sys_clk),
.sys_rst_n      (sys_rst_n),
    
.pwm            (pwm)
);

pwm_beep    pwm_beep_inst(
.sys_clk        (sys_clk),
.sys_rst_n      (sys_rst_n),
.pwm            (pwm),

.beep           (beep)
);
// defparam freq_select_inst.MAX = 100;//100 * 34 * 20 = 68000ns
// defparam freq_select_inst.DO = 80,
        //  freq_select_inst.RE = 60,
        //  freq_select_inst.MI = 50,
        //  freq_select_inst.FA = 40,
        //  freq_select_inst.SO = 30,
        //  freq_select_inst.LA = 20,
        //  freq_select_inst.XI = 10;

endmodule