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用C语言与音符播放钢琴曲梦中的婚礼

1.使用MDI函数播放钢琴曲卡农

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#include <stdio.h>
#include <windows.h>

#pragma comment(lib, "winmm.lib")

enum Scale {
    Rest = 0, C8 = 108, B7 = 107, A7s = 106, A7 = 105, G7s = 104, G7 = 103, F7s = 102, F7 = 101, E7 = 100,
    D7s = 99, D7 = 98, C7s = 97, C7 = 96, B6 = 95, A6s = 94, A6 = 93, G6s = 92, G6 = 91, F6s = 90, F6 = 89,
    E6 = 88, D6s = 87, D6 = 86, C6s = 85, C6 = 84, B5 = 83, A5s = 82, A5 = 81, G5s = 80, G5 = 79, F5s = 78,
    F5 = 77, E5 = 76, D5s = 75, D5 = 74, C5s = 73, C5 = 72, B4 = 71, A4s = 70, A4 = 69, G4s = 68, G4 = 67,
    F4s = 66, F4 = 65, E4 = 64, D4s = 63, D4 = 62, C4s = 61, C4 = 60, B3 = 59, A3s = 58, A3 = 57, G3s = 56,
    G3 = 55, F3s = 54, F3 = 53, E3 = 52, D3s = 51, D3 = 50, C3s = 49, C3 = 48, B2 = 47, A2s = 46, A2 = 45,
    G2s = 44, G2 = 43, F2s = 42, F2 = 41, E2 = 40, D2s = 39, D2 = 38, C2s = 37, C2 = 36, B1 = 35, A1s = 34,
    A1 = 33, G1s = 32, G1 = 31, F1s = 30, F1 = 29, E1 = 28, D1s = 27, D1 = 26, C1s = 25, C1 = 24, B0 = 23,
    A0s = 22, A0 = 21
};

void PlayCanon() {
    HMIDIOUT handle;
    midiOutOpen(&handle, 0, 0, 0, CALLBACK_NULL);

    int volume = 0x7f; // 最大音量
    int sleep = 200; // 每个音符的持续时间
    // 《梦中的婚礼》的 MIDI 音符
    int melody[] = {
        0,0,0,0,A5,
        A5,B5,B5,C5,C5,B5,B5,A5,A5,E5,E5,C5,C5,A4,A4,G5,
        G5,F5,F5,E5,F5,G5,F5,F5,
        0,F5,F5,G5,G5,A5,A5,B5,B5,D5,D5,F5,
        F5,E5,E5,D5,E5,F5,E5,E5,E5,
        E5, E5, F5, G5, G5, F5, E5, D5, C5, C5, D5, E5, E5, D5, D5, Rest,
        E5, E5, F5, G5, G5, F5, E5, D5, C5, C5, D5, E5, D5, C5, Rest,
        // 这里可以继续添加更多段落
    };

    int melodyLength = sizeof(melody) / sizeof(melody[0]);

    for (int i = 0; i < melodyLength; i++) {
        int note = melody[i];
        int voice = (volume << 16) + ((note) << 8) + 0x90; // 构造 MIDI 消息
        midiOutShortMsg(handle, voice); // 发送音符
        Sleep(sleep); // 等待
        midiOutShortMsg(handle, (volume << 16) + ((note) << 8) + 0x80); // 发送音符释放消息
    }

    midiOutClose(handle);
}

int main() {
    PlayCanon();
    return 0;
}